A high capacity cell architecture based on Alamouti coded relay strategy and frequency allocation scheme

Chih Wen Chang, Hsing Tai Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, we propose a new cell architecture for the orthogonal frequency division multiple access (OFDMA) systems by jointly taking frequency allocation scheme (FAS) and cooperative relay strategy into consideration. To serve the mobile stations (MSs) in the inner zone and relay stations (RSs) in the outer zone, a larger portion of frequency spectrum is allocated to the central base station (BS) such that the transmission from BS to RSs can never be a bottleneck during the two-hop relay process. Also, a pair of RSs are assigned the same frequency spectrum to carry out Alamouti coded relay using a half of transmission power (compared with the conventional non-cooperative relay). Depending on the received signal quality, an MS can be served by the central BS or a pair of RSs. Consequently, in addition to the lower interference level by using FAS and half transmission power, the selection and transmission diversity gains can also contribute to a higher capacity and a lower outage probability. The advantage of the proposed cell architecture is proved via simulation and analytical results by taking the intercell interference in the multicell environment and complete channel effects into consideration, including the small and large scale fading. The analytical framework fulfills the task of complete performance analysis in the literature. Some suggestions for future works have also been provided.

Original languageEnglish
Title of host publication2012 IEEE Wireless Communications and Networking Conference, WCNC 2012
Pages3074-3079
Number of pages6
DOIs
Publication statusPublished - 2012 Aug 1
Event2012 IEEE Wireless Communications and Networking Conference, WCNC 2012 - Paris, France
Duration: 2012 Apr 12012 Apr 4

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Other

Other2012 IEEE Wireless Communications and Networking Conference, WCNC 2012
CountryFrance
CityParis
Period12-04-0112-04-04

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Fingerprint Dive into the research topics of 'A high capacity cell architecture based on Alamouti coded relay strategy and frequency allocation scheme'. Together they form a unique fingerprint.

Cite this