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1 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */ |
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2 /* |
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3 * Copyright (c) 2009 CTTC |
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4 * |
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5 * This program is free software; you can redistribute it and/or modify |
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6 * it under the terms of the GNU General Public License version 2 as |
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7 * published by the Free Software Foundation; |
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8 * |
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9 * This program is distributed in the hope that it will be useful, |
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 * GNU General Public License for more details. |
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13 * |
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14 * You should have received a copy of the GNU General Public License |
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15 * along with this program; if not, write to the Free Software |
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16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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17 * |
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18 * Author: Nicola Baldo <nbaldo@cttc.es> |
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19 */ |
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20 |
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21 #include<ns3/object.h> |
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22 #include<ns3/log.h> |
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23 #include <ns3/test.h> |
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24 #include<iostream> |
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25 #include"interference-helper.h" |
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26 #include"wifi-phy.h" |
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27 |
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28 NS_LOG_COMPONENT_DEFINE ("InterferenceHelperTxDurationTest"); |
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29 |
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30 |
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31 #ifdef RUN_SELF_TESTS |
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32 |
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33 |
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34 namespace ns3 { |
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35 |
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36 class InterferenceHelperTxDurationTest : public Test { |
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37 public: |
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38 InterferenceHelperTxDurationTest (); |
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39 virtual ~InterferenceHelperTxDurationTest (); |
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40 virtual bool RunTests (void); |
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41 |
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42 private: |
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43 |
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44 /** |
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45 * Check if the payload tx duration returned by InterferenceHelper |
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46 * corresponds to a known value of the pay |
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47 * |
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48 * @param size size of payload in octets (includes everything after the PLCP header) |
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49 * @param payloadMode the WifiMode used |
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50 * @param knownPlcpLengthFieldValue the known value of the Length field in the PLCP header |
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51 * |
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52 * @return true if values correspond, false otherwise |
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53 */ |
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54 bool CheckPayloadDuration(uint32_t size, WifiMode payloadMode, uint32_t knownDurationMicroSeconds); |
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55 |
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56 /** |
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57 * Check if the overall tx duration returned by InterferenceHelper |
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58 * corresponds to a known value of the pay |
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59 * |
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60 * @param size size of payload in octets (includes everything after the PLCP header) |
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61 * @param payloadMode the WifiMode used |
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62 * @param preamble the WifiPreamble used |
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63 * @param knownPlcpLengthFieldValue the known value of the Length field in the PLCP header |
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64 * |
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65 * @return true if values correspond, false otherwise |
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66 */ |
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67 bool CheckTxDuration(uint32_t size, WifiMode payloadMode, WifiPreamble preamble, uint32_t knownDurationMicroSeconds); |
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68 |
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69 }; |
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70 |
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71 |
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72 // we need to create one instance of InterferenceHelperTxDurationTest |
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73 static InterferenceHelperTxDurationTest interferenceHelperTxDurationTestInstance; |
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74 |
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75 |
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76 InterferenceHelperTxDurationTest::InterferenceHelperTxDurationTest () |
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77 : Test ("InterferenceHelperTxDuration") |
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78 { |
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79 } |
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80 |
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81 |
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82 InterferenceHelperTxDurationTest::~InterferenceHelperTxDurationTest () |
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83 { |
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84 } |
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85 |
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86 |
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87 |
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88 bool |
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89 InterferenceHelperTxDurationTest::CheckPayloadDuration(uint32_t size, WifiMode payloadMode, uint32_t knownDurationMicroSeconds) |
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90 { |
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91 uint32_t calculatedDurationMicroSeconds = InterferenceHelper::GetPayloadDurationMicroSeconds (size, payloadMode); |
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92 if (calculatedDurationMicroSeconds != knownDurationMicroSeconds) |
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93 { |
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94 std::cerr << " size=" << size |
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95 << " mode=" << payloadMode |
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96 << " known=" << knownDurationMicroSeconds |
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97 << " calculated=" << calculatedDurationMicroSeconds |
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98 << std::endl; |
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99 return false; |
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100 } |
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101 return true; |
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102 } |
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103 |
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104 bool |
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105 InterferenceHelperTxDurationTest::CheckTxDuration(uint32_t size, WifiMode payloadMode, WifiPreamble preamble, uint32_t knownDurationMicroSeconds) |
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106 { |
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107 uint32_t calculatedDurationMicroSeconds = InterferenceHelper::CalculateTxDuration (size, payloadMode, preamble).GetMicroSeconds (); |
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108 if (calculatedDurationMicroSeconds != knownDurationMicroSeconds) |
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109 { |
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110 std::cerr << " size=" << size |
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111 << " mode=" << payloadMode |
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112 << " preamble=" << preamble |
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113 << " known=" << knownDurationMicroSeconds |
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114 << " calculated=" << calculatedDurationMicroSeconds |
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115 << std::endl; |
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116 return false; |
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117 } |
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118 return true; |
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119 } |
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120 |
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121 bool |
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122 InterferenceHelperTxDurationTest::RunTests (void) |
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123 { |
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124 bool retval = true; |
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125 |
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126 // IEEE Std 802.11-2007 Table 18-2 "Example of LENGTH calculations for CCK" |
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127 retval = retval |
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128 && CheckPayloadDuration (1023, WifiPhy::Get11mbb (), 744) |
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129 && CheckPayloadDuration (1024, WifiPhy::Get11mbb (), 745) |
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130 && CheckPayloadDuration (1025, WifiPhy::Get11mbb (), 746) |
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131 && CheckPayloadDuration (1026, WifiPhy::Get11mbb (), 747); |
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132 |
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133 |
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134 // Similar, but we add PLCP preamble and header durations |
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135 // and we test different rates. |
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136 // The payload durations for modes other than 11mbb have been |
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137 // calculated by hand according to IEEE Std 802.11-2007 18.2.3.5 |
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138 retval = retval |
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139 && CheckTxDuration (1023, WifiPhy::Get11mbb (), WIFI_PREAMBLE_SHORT, 744 + 96) |
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140 && CheckTxDuration (1024, WifiPhy::Get11mbb (), WIFI_PREAMBLE_SHORT, 745 + 96) |
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141 && CheckTxDuration (1025, WifiPhy::Get11mbb (), WIFI_PREAMBLE_SHORT, 746 + 96) |
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142 && CheckTxDuration (1026, WifiPhy::Get11mbb (), WIFI_PREAMBLE_SHORT, 747 + 96) |
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143 && CheckTxDuration (1023, WifiPhy::Get11mbb (), WIFI_PREAMBLE_LONG, 744 + 192) |
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144 && CheckTxDuration (1024, WifiPhy::Get11mbb (), WIFI_PREAMBLE_LONG, 745 + 192) |
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145 && CheckTxDuration (1025, WifiPhy::Get11mbb (), WIFI_PREAMBLE_LONG, 746 + 192) |
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146 && CheckTxDuration (1026, WifiPhy::Get11mbb (), WIFI_PREAMBLE_LONG, 747 + 192) |
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147 && CheckTxDuration (1023, WifiPhy::Get5_5mbb (), WIFI_PREAMBLE_SHORT, 1488 + 96) |
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148 && CheckTxDuration (1024, WifiPhy::Get5_5mbb (), WIFI_PREAMBLE_SHORT, 1490 + 96) |
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149 && CheckTxDuration (1025, WifiPhy::Get5_5mbb (), WIFI_PREAMBLE_SHORT, 1491 + 96) |
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150 && CheckTxDuration (1026, WifiPhy::Get5_5mbb (), WIFI_PREAMBLE_SHORT, 1493 + 96) |
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151 && CheckTxDuration (1023, WifiPhy::Get5_5mbb (), WIFI_PREAMBLE_LONG, 1488 + 192) |
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152 && CheckTxDuration (1024, WifiPhy::Get5_5mbb (), WIFI_PREAMBLE_LONG, 1490 + 192) |
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153 && CheckTxDuration (1025, WifiPhy::Get5_5mbb (), WIFI_PREAMBLE_LONG, 1491 + 192) |
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154 && CheckTxDuration (1026, WifiPhy::Get5_5mbb (), WIFI_PREAMBLE_LONG, 1493 + 192) |
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155 && CheckTxDuration (1023, WifiPhy::Get2mbb (), WIFI_PREAMBLE_SHORT, 4092 + 96) |
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156 && CheckTxDuration (1024, WifiPhy::Get2mbb (), WIFI_PREAMBLE_SHORT, 4096 + 96) |
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157 && CheckTxDuration (1025, WifiPhy::Get2mbb (), WIFI_PREAMBLE_SHORT, 4100 + 96) |
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158 && CheckTxDuration (1026, WifiPhy::Get2mbb (), WIFI_PREAMBLE_SHORT, 4104 + 96) |
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159 && CheckTxDuration (1023, WifiPhy::Get2mbb (), WIFI_PREAMBLE_LONG, 4092 + 192) |
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160 && CheckTxDuration (1024, WifiPhy::Get2mbb (), WIFI_PREAMBLE_LONG, 4096 + 192) |
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161 && CheckTxDuration (1025, WifiPhy::Get2mbb (), WIFI_PREAMBLE_LONG, 4100 + 192) |
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162 && CheckTxDuration (1026, WifiPhy::Get2mbb (), WIFI_PREAMBLE_LONG, 4104 + 192) |
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163 && CheckTxDuration (1023, WifiPhy::Get1mbb (), WIFI_PREAMBLE_SHORT, 8184 + 96) |
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164 && CheckTxDuration (1024, WifiPhy::Get1mbb (), WIFI_PREAMBLE_SHORT, 8192 + 96) |
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165 && CheckTxDuration (1025, WifiPhy::Get1mbb (), WIFI_PREAMBLE_SHORT, 8200 + 96) |
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166 && CheckTxDuration (1026, WifiPhy::Get1mbb (), WIFI_PREAMBLE_SHORT, 8208 + 96) |
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167 && CheckTxDuration (1023, WifiPhy::Get1mbb (), WIFI_PREAMBLE_LONG, 8184 + 192) |
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168 && CheckTxDuration (1024, WifiPhy::Get1mbb (), WIFI_PREAMBLE_LONG, 8192 + 192) |
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169 && CheckTxDuration (1025, WifiPhy::Get1mbb (), WIFI_PREAMBLE_LONG, 8200 + 192) |
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170 && CheckTxDuration (1026, WifiPhy::Get1mbb (), WIFI_PREAMBLE_LONG, 8208 + 192); |
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171 |
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172 // values from http://mailman.isi.edu/pipermail/ns-developers/2009-July/006226.html |
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173 retval = retval && CheckTxDuration (14, WifiPhy::Get1mbb (), WIFI_PREAMBLE_LONG, 304); |
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174 |
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175 // values from |
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176 // http://www.oreillynet.com/pub/a/wireless/2003/08/08/wireless_throughput.html |
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177 retval = retval |
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178 && CheckTxDuration (1536, WifiPhy::Get11mbb (), WIFI_PREAMBLE_LONG, 1310) |
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179 && CheckTxDuration (76, WifiPhy::Get11mbb (), WIFI_PREAMBLE_LONG, 248) |
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180 && CheckTxDuration (14, WifiPhy::Get11mbb (), WIFI_PREAMBLE_LONG, 203) |
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181 && CheckTxDuration (1536, WifiPhy::Get54mba (), WIFI_PREAMBLE_LONG, 248) |
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182 && CheckTxDuration (76, WifiPhy::Get54mba (), WIFI_PREAMBLE_LONG, 32) |
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183 && CheckTxDuration (14, WifiPhy::Get54mba (), WIFI_PREAMBLE_LONG, 24); |
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184 |
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185 |
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186 return retval; |
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187 } |
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188 |
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189 |
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190 } //namespace ns3 |
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191 |
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192 |
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193 #endif /* RUN_SELF_TESTS */ |