Title :
Resource Allocation in Multiuser OFDM Distributed Antenna Systems
Author :
Xu, Wenjun ; Niu, Kai ; He, Zhiqiang ; Wu, Weiling
Author_Institution :
Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
This paper formulates resource allocation problem in orthogonal frequency division multiplexing (OFDM) distributed antenna systems (DAS) by extending conventional one in OFDM co-located antenna systems (CAS). The algorithm to achieve maximum rate-sum capacity is derived, and the achievable capacity of a single user is also given by theoretical analysis. Simulated and theoretical results show that OFDM DAS can achieve much more rate-sum capacity than OFDM CAS, and the performance gain increases with the number of antennas in systems.
Keywords :
MIMO communication; OFDM modulation; antennas; distributed antenna systems; maximum rate-sum capacity; multiuser OFDM; orthogonal frequency division multiplexing; resource allocation; Algorithm design and analysis; Antenna theory; Channel estimation; Content addressable storage; Fading; Helium; Multiaccess communication; OFDM; Performance gain; Resource management;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-0263-2
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2007.379
