The topic must cover thesesissues as follow:
1. In multi-cell system, analysis access points density and the capacity with different propagationcondition(indoor and outdoor).
2. What is the effect when the access points(AP)TX power increase or decrease for capacity and co-channel interference from closer neighbouring access points.
3. The relationship between total cell (AP) throughput and mean user throughput.
4. What is mean SINR over AP coverage range (should correspond to specific achieved throughputs).
5. Peak rate vs SNR (dB) [peak physical layer data rate for a given SINR value, without any protocol overhead and radio resource sharing among multiple users. – also assume OPER = 10%]
Need following :
On simulation parameters :
1. For 802.11g, Set Max TX pwr = 20 dBm (=100 mw) ; [ EIRP for IEEE 802.11b/g Wireless LAN 20 MHz-wide channels in the 2.4 GHz ISM band (5 mW/MHz) ]
2. For 802.11n, Set Max TX pwr = 23 dBm (=200 mw) – typical vendor setting ; [EIRP for IEEE 802.11n Wireless LAN 40 MHz-wide (5 mW/MHz) channels in 5 GHz subband 4 (5,735–5,835 MHz, US only) or 5 GHz subband 2 (5,470–5,725 MHz, EU only).]
3. If assuming WLAN cards in laptops, then use : TX pwr = 15 dBm (=32 mw) ;
4. Specify type of 802.11g configuration assumed; This can be any of the 3 below (need to assume one) :
• 802.11g (mixed mode operation) – (CTS/RTS)
• 802.11g (mixed mode operation) – (CTS-to-self)
• 802.11g (no legacy support) – (no 802.11b clients in cell)
5. Need to specify antenna type & gain e.g. can assume 2-2.2 dBi gain (diversity dipole antenna) etc. – other typical vendor settings : 6dBi for 5GHz frequency band, 4dBi for 2.4GHz frequency band .
6. Specify frame size e.g. 1500 bytes
7. Specify Wi-Fi channel assignment e.g. Allco-channel deployed , all 3 non-overlapping channels used [802.11g] , …
8. If using 802.11n, also need to specify : MIMO scheme used & frame aggregation (ON/OFF)
9. Specify Deployment scenario : indoors, outdoors
10. Specify ISD. e.g. could set to 40m, so the strong co-channel interference from closer neighboring access points is minimized.
11. Specify UE admission mode e.g. OSG or CSG
12. Specify Traffic Steering Mode e.g. Wi-Fi is prioritized over Macro, WiFi traffic only etc.
13. Traffic model : can we have full-buffer instead ?
14. Indoor/Outdoor traffic ratio : perhaps not applicable to these tests.
15. Specify Pathloss (lognormal dist.) shadowing component STD if outdoor scenario considered
16. Specify pathloss exponent assumed in indoors scenarios e.g. 1.7 – 2 for 2.4GHz (indoors)
17. Specify de-correlation distance e.g. 10-50m etc. [according to env.]
18. Specify UE mean speed & indoors mobility model used e.g. set to 3 km/hr for indoors; 30 km/hr outdoors
19. Disable DFS if feature available in the simulator config. File.
20. In addition to path loss can we also consider AWGN + multipath ?
1. In multi-cell system, analysis access points density and the capacity with different propagationcondition(indoor and outdoor).
2. What is the effect when the access points(AP)TX power increase or decrease for capacity and co-channel interference from closer neighbouring access points.
3. The relationship between total cell (AP) throughput and mean user throughput.
4. What is mean SINR over AP coverage range (should correspond to specific achieved throughputs).
5. Peak rate vs SNR (dB) [peak physical layer data rate for a given SINR value, without any protocol overhead and radio resource sharing among multiple users. – also assume OPER = 10%]
Need following :
On simulation parameters :
1. For 802.11g, Set Max TX pwr = 20 dBm (=100 mw) ; [ EIRP for IEEE 802.11b/g Wireless LAN 20 MHz-wide channels in the 2.4 GHz ISM band (5 mW/MHz) ]
2. For 802.11n, Set Max TX pwr = 23 dBm (=200 mw) – typical vendor setting ; [EIRP for IEEE 802.11n Wireless LAN 40 MHz-wide (5 mW/MHz) channels in 5 GHz subband 4 (5,735–5,835 MHz, US only) or 5 GHz subband 2 (5,470–5,725 MHz, EU only).]
3. If assuming WLAN cards in laptops, then use : TX pwr = 15 dBm (=32 mw) ;
4. Specify type of 802.11g configuration assumed; This can be any of the 3 below (need to assume one) :
• 802.11g (mixed mode operation) – (CTS/RTS)
• 802.11g (mixed mode operation) – (CTS-to-self)
• 802.11g (no legacy support) – (no 802.11b clients in cell)
5. Need to specify antenna type & gain e.g. can assume 2-2.2 dBi gain (diversity dipole antenna) etc. – other typical vendor settings : 6dBi for 5GHz frequency band, 4dBi for 2.4GHz frequency band .
6. Specify frame size e.g. 1500 bytes
7. Specify Wi-Fi channel assignment e.g. Allco-channel deployed , all 3 non-overlapping channels used [802.11g] , …
8. If using 802.11n, also need to specify : MIMO scheme used & frame aggregation (ON/OFF)
9. Specify Deployment scenario : indoors, outdoors
10. Specify ISD. e.g. could set to 40m, so the strong co-channel interference from closer neighboring access points is minimized.
11. Specify UE admission mode e.g. OSG or CSG
12. Specify Traffic Steering Mode e.g. Wi-Fi is prioritized over Macro, WiFi traffic only etc.
13. Traffic model : can we have full-buffer instead ?
14. Indoor/Outdoor traffic ratio : perhaps not applicable to these tests.
15. Specify Pathloss (lognormal dist.) shadowing component STD if outdoor scenario considered
16. Specify pathloss exponent assumed in indoors scenarios e.g. 1.7 – 2 for 2.4GHz (indoors)
17. Specify de-correlation distance e.g. 10-50m etc. [according to env.]
18. Specify UE mean speed & indoors mobility model used e.g. set to 3 km/hr for indoors; 30 km/hr outdoors
19. Disable DFS if feature available in the simulator config. File.
20. In addition to path loss can we also consider AWGN + multipath ?
On results types :
1. Modify already provided graphs to show “AP Density (per sq.km)” on the x-axis instead of “Number of AP”. Then,
2. On fig.2 : as you increase the # APs (or AP density now), do you keep same TX pwr per AP, or does it reduce accordingly ? We need a new figure (corresponding to fig.2, showing achievable throughput per UE, as # AP density increases.
3. On fig.3 : is y-axis total cell (AP) throughput or mean user throughput ?
4. On fig.4 : is y-axis mean user throughput (that I am asking for in point 2 above) ?
5. Can you report figure : ave. SINR vs Range ? to see what is mean SINR over AP coverage (should correspond to specific achieved throughputs)
6. Can you report figure : Rate vs Rx sensitivity (dBm)
7. Can you report figure : Peak rate vs SNR (dB) [peak physical layer data rate for a given SINR value, without any protocol overhead and radio resource sharing among multiple users. – also assume OPER = 10%]
8. Can you report figure : Network outage % vs AP density ?
9. Additionally, can you provide results similar to eamples below ?
2. On fig.2 : as you increase the # APs (or AP density now), do you keep same TX pwr per AP, or does it reduce accordingly ? We need a new figure (corresponding to fig.2, showing achievable throughput per UE, as # AP density increases.
3. On fig.3 : is y-axis total cell (AP) throughput or mean user throughput ?
4. On fig.4 : is y-axis mean user throughput (that I am asking for in point 2 above) ?
5. Can you report figure : ave. SINR vs Range ? to see what is mean SINR over AP coverage (should correspond to specific achieved throughputs)
6. Can you report figure : Rate vs Rx sensitivity (dBm)
7. Can you report figure : Peak rate vs SNR (dB) [peak physical layer data rate for a given SINR value, without any protocol overhead and radio resource sharing among multiple users. – also assume OPER = 10%]
8. Can you report figure : Network outage % vs AP density ?
9. Additionally, can you provide results similar to eamples below ?
No comments:
Post a Comment