Multiple-access interference processes are self-similar in multimedia CDMA cellular networks

Author

Zhang, Junshan ; Konstantopoulos, Takis

Author_Institution

Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA

Volume

51

Issue

3

fYear

2005

fDate

3/1/2005 12:00:00 AM

Firstpage

1024

Lastpage

1038

Abstract

We consider bursty data communications in code-division multiple-access (CDMA) cellular networks. The significant fluctuation of the cochannel multiple-access interference (MAI) in such systems makes it very challenging to carry out radio resource management. A main goal of this paper is to obtain a fundamental understanding of the temporal correlation structure of the MAI, which plays a crucial role in effective resource allocation. To this end, we take a cross-layer design approach, and characterize the stochastic MAI process while taking into account both the burstiness of data traffic and time-varying channel conditions. Our main results reveal that under standard assumptions on ON/OFF traffic flows and fading channels, the MAI process exhibits scale-invariant burstiness and is "self-similar" (with Hurst parameter 1/2\n\n\t\t

Keywords

cellular radio; cochannel interference; code division multiple access; correlation theory; data communication; multimedia communication; multiuser detection; resource allocation; stochastic processes; telecommunication traffic; time-varying channels; bursty data communication; cochannel multiple-access interference process; code-division multiple-access; cross-layer design; data traffic; dynamic resource allocation; fading channel; interference management; multimedia CDMA cellular network; multiuser detection; on-off traffic flow; radio resource management; rate control scheme; scale-invariant burstiness; stochastic MAI; symbol level; temporal correlation structure; time-varying channel; Cross layer design; Data communication; Fading; Fluctuations; Land mobile radio cellular systems; Multiaccess communication; Multiple access interference; Resource management; Stochastic processes; Time-varying channels; Code-division multiple access (CDMA); cross- layer design; heavy-tailed; long-range dependence; multiple-access interference (MAI); resource allocation; self-similarity;

fLanguage

English

Journal_Title

Information Theory, IEEE Transactions on

Publisher

ieee

ISSN

0018-9448

Type

jour

DOI

10.1109/TIT.2004.842624

Filename

1397938