Title :
Reverse-link performance of synchronous cellular DS-CDMA networks in dispersive Rician multipath fading channels
Author :
Hwang, Seung-Hoon ; Hanzo, Lajos
Author_Institution :
Sch. of Electron. & Comput. Sci., Southampton Univ., UK
Abstract :
In this paper, the reverse-link performance of synchronous DS-CDMA cellular networks is investigated in Rician multipath fading environments. The system performance is evaluated in terms of the achievable average bit error rate (BER) and the user capacities of two different network layouts, namely those of a uniform grid of hexagonal multiple cells and a single isolated cell. In the multiple-cell scenario, the impact of the other cells´ interference on the attainable capacity of the synchronous DS-CDMA uplink is investigated. Upon comparing both networks to a conventional asynchronous CDMA system, we demonstrate an achievable user capacity gain of 25% to 56% for synchronous uplink transmissions over that of the corresponding asynchronous transmission scenario at BER=10-3.
Keywords :
Rician channels; cellular radio; channel capacity; code division multiple access; dispersive channels; error statistics; multipath channels; spread spectrum communication; BER; DS-CDMA uplink; Rician fading channels; bit error rate; dispersive multipath channels; network reverse-link performance; network user capacity; synchronous cellular networks; uniform hexagonal multiple cell grid; user capacity gain; Bit error rate; Cellular networks; Dispersion; Fading; Interference; Land mobile radio cellular systems; Multiaccess communication; Rician channels; System performance;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1390678
