Title :
WLC27-5: An Effective Downlink Resource Allocation for Supporting Heterogeneous Traffic Data in an OFDM/SDMA-based Cellular System
Author :
Ko, SangJun ; Heo, Joo ; Chang, KyungHi
Author_Institution :
Grad. Sch. of Inf. Technol. & Telecommun., Inha Univ., Incheon
fDate :
Nov. 27 2006-Dec. 1 2006
Abstract :
Recent studies on downlink resource allocation algorithms applying SDMA have achieved the maximization of system throughput and cell coverage in a single cell environment only. In this paper, we propose an OFDM/SDMA-based downlink resource allocation algorithm that considers QoS parameters of traffic data, while minimizing the loss of system throughput under a multi-cell cellular environment in order to account for inter-cell interference from adjacent cells. We manifest the performance of the proposed algorithm under a SCME (spatial channel model extensions) MIMO channel model.
Keywords :
MIMO communication; OFDM modulation; adjacent channel interference; cellular radio; cochannel interference; quality of service; resource allocation; space division multiple access; telecommunication traffic; wireless channels; MIMO channel model; OFDM/SDMA-based cellular system; QoS parameters; SCME; downlink resource allocation; heterogeneous traffic; intercell interference; multicell cellular environment; orthogonal frequency division multiplexing; space division multiple access; spatial channel model extensions; Adaptive arrays; Downlink; Information technology; Interference; MIMO; Multiaccess communication; OFDM; Resource management; Throughput; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2006.773
