Effect of User Density and Traffic Volume on Uplink Capacity of Multihop Cellular Network

The multihop cellular network with mobile relays is of great interest to the emerging standards like IEEE 802.16j, 3GPP-LTE in order to provide wireless broadband access with an increased throughput and coverage. In this context, we focus on the non-real-time services for the uplink direction of a conventional cellular system with multihop transmission using mobile relay stations (RS). Our goal is to derive a per-hop based multihop scheduling algorithm that is easily applicable in a cellular network with high mobility. We have evaluated the performance of multihop communication in an infrastructure based cellular network with high mobility and compared it with the singlehop communication in terms of system throughput and system packet delay. Numerical results demonstrate that multihop communication has greatly improved the performance over conventional cellular system specially when the system has increased user density and higher traffic volume with enhanced mobility.