Title :
Broadband Wireless Access Interference and Capacity Estimation
Author :
Lerbour, R. ; Kurt, T. ; Helloco, Y. Le ; Breton, B.
Author_Institution :
Ericsson TEMS, Ottawa, ON
Abstract :
The performance of an IEEE 802.16 based OFDMA network is simulated employing real geographical and base station data. The effects of soft handover, smart antennas, and transmit diversity on system performance are presented. In particular, the relationship between power control and adaptive modulation is investigated and shown to reduce the uplink interference considerably, thus improving the coverage and the capacity of the network. The differences between the interference characteristics of OFDM and OFDMA based operations are also presented. The reasons for dropped calls and a throughput analysis for a typical OFDMA network are also discussed.
Keywords :
WiMax; adaptive antenna arrays; adaptive modulation; broadband networks; radio access networks; IEEE 802.16; OFDMA network; adaptive modulation; base station data; broadband wireless access interference; capacity estimation; geographical data; power control; smart antennas; soft handover; transmit diversity; Analytical models; DSL; Frequency conversion; Interference; OFDM modulation; Power control; Programmable control; System performance; Throughput; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.196
