ANALYSING CAPACITY IMPROVEMENTS IN WIRELESS NETWORKS BY RELAYING
Holger Karl, Seble Mengesha · 2001
In infrastructure-based wireless networks, the total transmission capacity achievable at an access point is an important metric for system performance. In this paper, we present an analytical investigation of the use of relaying in wireless cells in order to improve the total goodput at an access point. A simple scenario of two cells is considered, formulas for SINR, packet error rate, and goodput are derived and numerically evaluated for both the standard direct communication case and the use of relaying terminals. We will show that the path loss coefficient and the physical location of terminals are the most important parameters and that for realistic scenarios, relaying can improve the total goodput of a cell by over 40%. Moreover, for most realistic scenarios, relaying is never worse than direct communication while providing a fairer sharing of bandwidth between terminals within a cell.