Optimal Placement of Transparent Relay Stations in 802.16j Mobile Multihop Relay Networks

Yongchul KIM  Mihail L. SICHITIU  

IEICE TRANSACTIONS on Communications   Vol.E94-B   No.9   pp.2582-2591
Publication Date: 2011/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.2582
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
WiMAX,  relay networks,  optimal placement,  

Full Text: FreePDF

WiMAX (IEEE 802.16) has emerged as a promising radio access technology for providing high speed broadband connectivity to subscribers over large geographic regions. New enhancements allow deployments of relay stations (RSs) that can extend the coverage of the base station (BS), increase cell capacity, or both. In this paper, we consider the placement of transparent RSs that maximize the cell capacity. We provide a closed-form approximation for the optimal location of RS inside a cell. A numerical analysis of a number of case studies validates the closed-form approximation. The numerical results show that the closed-form approximation is reasonably accurate.