|
|
|---|
| 112 |
NS_ASSERT (nss <= 4); |
112 |
NS_ASSERT (nss <= 4); |
| 113 |
struct WifiModeFactory::WifiModeItem *item = WifiModeFactory::GetFactory ()->Get (m_uid); |
113 |
struct WifiModeFactory::WifiModeItem *item = WifiModeFactory::GetFactory ()->Get (m_uid); |
| 114 |
uint64_t dataRate = 0; |
114 |
uint64_t dataRate = 0; |
|
|
115 |
uint32_t usableSubCarriers = 0; |
| 116 |
double symbolRate = 0; |
| 117 |
double codingRate = 0; |
| 118 |
uint32_t numberOfBitsPerSubcarrier = log2 (GetConstellationSize ()); |
| 115 |
if (item->modClass == WIFI_MOD_CLASS_DSSS) |
119 |
if (item->modClass == WIFI_MOD_CLASS_DSSS) |
| 116 |
{ |
120 |
{ |
| 117 |
dataRate = (11000000 / 11) * log2 (GetConstellationSize ()); |
121 |
dataRate = ((11000000 / 11) * numberOfBitsPerSubcarrier); |
| 118 |
} |
122 |
} |
| 119 |
else if (item->modClass == WIFI_MOD_CLASS_HR_DSSS) |
123 |
else if (item->modClass == WIFI_MOD_CLASS_HR_DSSS) |
| 120 |
{ |
124 |
{ |
| 121 |
dataRate = (11000000 / 8) * log2 (GetConstellationSize ()); |
125 |
dataRate = ((11000000 / 8) * numberOfBitsPerSubcarrier); |
| 122 |
} |
126 |
} |
| 123 |
else if (item->modClass == WIFI_MOD_CLASS_OFDM || item->modClass == WIFI_MOD_CLASS_ERP_OFDM) |
127 |
else if (item->modClass == WIFI_MOD_CLASS_OFDM || item->modClass == WIFI_MOD_CLASS_ERP_OFDM) |
| 124 |
{ |
128 |
{ |
| 125 |
double symbolRate = (1 / 4.0) * 1e6; |
129 |
usableSubCarriers = 48; |
| 126 |
|
|
|
| 127 |
uint32_t usableSubCarriers; |
| 128 |
switch (channelWidth) |
130 |
switch (channelWidth) |
| 129 |
{ |
131 |
{ |
| 130 |
case 20: |
132 |
case 20: |
| 131 |
default: |
133 |
default: |
| 132 |
usableSubCarriers = 48; |
134 |
symbolRate = (1 / 4.0) * 1e6; |
| 133 |
break; |
135 |
break; |
| 134 |
case 10: |
136 |
case 10: |
| 135 |
usableSubCarriers = 24; |
137 |
symbolRate = (1 / 8.0) * 1e6; |
| 136 |
break; |
138 |
break; |
| 137 |
case 5: |
139 |
case 5: |
| 138 |
usableSubCarriers = 12; |
140 |
symbolRate = (1 / 16.0) * 1e6; |
| 139 |
break; |
141 |
break; |
| 140 |
} |
142 |
} |
| 141 |
|
143 |
|
| 142 |
double codingRate; |
|
|
| 143 |
switch (GetCodeRate ()) |
144 |
switch (GetCodeRate ()) |
| 144 |
{ |
145 |
{ |
| 145 |
case WIFI_CODE_RATE_3_4: |
146 |
case WIFI_CODE_RATE_3_4: |
|
|
|---|
| 157 |
break; |
158 |
break; |
| 158 |
} |
159 |
} |
| 159 |
|
160 |
|
| 160 |
uint32_t numberOfBitsPerSubcarrier = log2 (GetConstellationSize ()); |
|
|
| 161 |
|
| 162 |
dataRate = lrint (ceil (symbolRate * usableSubCarriers * numberOfBitsPerSubcarrier * codingRate)); |
161 |
dataRate = lrint (ceil (symbolRate * usableSubCarriers * numberOfBitsPerSubcarrier * codingRate)); |
| 163 |
} |
162 |
} |
| 164 |
else if (item->modClass == WIFI_MOD_CLASS_HT || item->modClass == WIFI_MOD_CLASS_VHT) |
163 |
else if (item->modClass == WIFI_MOD_CLASS_HT || item->modClass == WIFI_MOD_CLASS_VHT) |
|
|
|---|
| 171 |
{ |
170 |
{ |
| 172 |
NS_ASSERT_MSG (channelWidth != 80, "VHT MCS 6 forbidden at 80 MHz when NSS = 3"); |
171 |
NS_ASSERT_MSG (channelWidth != 80, "VHT MCS 6 forbidden at 80 MHz when NSS = 3"); |
| 173 |
} |
172 |
} |
| 174 |
double symbolRate; |
173 |
|
| 175 |
if (!isShortGuardInterval) |
174 |
if (!isShortGuardInterval) |
| 176 |
{ |
175 |
{ |
| 177 |
symbolRate = (1 / 4.0) * 1e6; |
176 |
symbolRate = (1 / 4.0) * 1e6; |
|
|
|---|
| 181 |
symbolRate = (1 / 3.6) * 1e6; |
180 |
symbolRate = (1 / 3.6) * 1e6; |
| 182 |
} |
181 |
} |
| 183 |
|
182 |
|
| 184 |
uint32_t usableSubCarriers; |
|
|
| 185 |
switch (channelWidth) |
183 |
switch (channelWidth) |
| 186 |
{ |
184 |
{ |
| 187 |
case 20: |
185 |
case 20: |
|
|
|---|
| 199 |
break; |
197 |
break; |
| 200 |
} |
198 |
} |
| 201 |
|
199 |
|
| 202 |
double codingRate; |
|
|
| 203 |
switch (GetCodeRate ()) |
200 |
switch (GetCodeRate ()) |
| 204 |
{ |
201 |
{ |
| 205 |
case WIFI_CODE_RATE_5_6: |
202 |
case WIFI_CODE_RATE_5_6: |
|
|
|---|
| 220 |
break; |
217 |
break; |
| 221 |
} |
218 |
} |
| 222 |
|
219 |
|
| 223 |
uint32_t numberOfBitsPerSubcarrier = log2 (GetConstellationSize ()); |
|
|
| 224 |
|
| 225 |
dataRate = lrint (ceil (symbolRate * usableSubCarriers * numberOfBitsPerSubcarrier * codingRate)); |
220 |
dataRate = lrint (ceil (symbolRate * usableSubCarriers * numberOfBitsPerSubcarrier * codingRate)); |
| 226 |
} |
221 |
} |
| 227 |
else |
222 |
else |