Paper Info
Title
Uplink capacity investigations of TDD/CDMA
Abstract
In this contribution we analyze the uplink capacity of a TDD/CDMA system. In TDD/CDMA the mobiles suffer from interference inflicted by the other mobile stations (MSs) both in the reference cell the MS is roaming in (intracell interference) as well as due to those in the neighbouring cells (intercell interference). Furthermore, in contrast to FDD/CDMA, where the base stations (BSs) transmit in an orthogonal frequency band, in TDD/CDMA there is additional interference imposed by other BSs of the adjacent cells. In return for this disadvantage TDD/CDMA guarantees the flexible utilization of all the available bandwidth, which meets the demand for the support of asymmetric uplink and downlink services, such as high speed data rate download in mobile Internet services, etc. This study quantifies the amount of uplink interference inflicted by the MSs and BSs. With the aid of characterising the interference, a detailed discussion of the uplink capacity of TDD/CDMA is provided and two extreme teletraffic loading scenarios of the UTRA TDD/CDMA system are considered. Our numerical results show that the capacity of TDD/CDMA is significantly poorer, than that of FDD/CDMA.
Year
DOI
Venue
2002
10.1109/VTC.2002.1002638
VTC Spring
Keywords
Field
DocType
radio links,radiofrequency interference,asymmetric uplink/downlink services,cellular radio,time division multiplexing,uplink capacity,intracell interference,utra,tdd/cdma system,3g mobile communication,umts terrestrial radio access,code division multiple access,base stations,intercell interference,telecommunication traffic,teletraffic loading,mobile stations,interference,roaming,resource management,frequency,mobile station,base station,bandwidth,downlink,mobile communication
Base station,Computer science,CDMA spectral efficiency,Computer network,Electronic engineering,Cellular network,Interference (wave propagation),Code division multiple access,Roaming,APT band plan in the 700 MHz band,Telecommunications link
Conference
Volume
ISSN
Citations 
2
2577-2465
5
PageRank 
References 
Authors
0.76
0
3
Name
Order
Citations
PageRank
Xingyao Wu1101.68
Lie-Liang Yang21623163.43
Lajos Hanzo310889849.85