01906nas a2200217   4500008004100000245006900041210006900110260000900179300001400188490000600202520124400208653001801452653001601470653001501486653001001501100001501511700001301526700001601539700001601555856011701571       2010                        eng d00aPerformance evaluation of fixed and mobile relay in WiMAX system0 aPerformance evaluation of fixed and mobile relay in WiMAX system  c2010  a190 - 1950 v83 aFuture wireless communication systems are expected to provide more stable and higher data rate transmissions in the whole network. WiMAX is one of the technologies to cover diverse geographic regions. WiMAX covers the high dense urban areas and provide access over large geographic regions in remote rural area. However, in both scenarios it is challenging to cover the entire service area. In both cases relays are foreseen to extend the range of the BS and to increase the system throughput allowing for a cost-efficient deployment and service. As multi-hop/relay has complex interactions between the routing and medium access control decisions, the extent to which analytical expressions can be used to explore its benefits are limited. Consequently simulations tend to be the preferred way of assessing the performance of relays. In this paper, we explain, how to deploy fixed-relay and mobile relay by using computer simulation in WiMAX system and we consistently observed that the throughput is increased and the outage is decreased in the relay-augmented WiMAX network, which is converted to range extension without any capacity penalty, for the realistic range of values of the propagation and other system parameters investigated.10aCoverage area10aFixed relay10aThroughput10aWiMAX1 aMumtaz, S.1 aTu, L.T.1 aSadeghi, R.1 aGameiro, A.  uhttp://www.scopus.com/inward/record.url?eid=2-s2.0-79960663765&partnerID=40&md5=08f3181dd0a1828512060fb801f8eadc