Performance Improvement of Fiber Wireless (Fi-Wi) Network by using Multi-hop Relay System over Noise

Abstract

Fiber-wireless (Fi-Wi) networks are a viable solution for delivering high profile quadruple play services. Integration of Passive optical networks (PON) networks along with wireless access networks provide ubiquitous characteristics for high bandwidth applications. PON operation can be improved by employing an improved digital modulation techniques. One of it is multi-hoped relay architecture that improves the performance of optical-wireless access networks. Because transmit diversity is not practically possible to the cellular mobile station due to the small size of the mobile station and electromagnetic interaction of antenna elements on the small platform .So, there is a need for such ideas to be extended to the macroscopic arena[1], where space-time coding is performed over transmit antennas that are not necessarily co-located. Mobile antennas are Omni directional. Signals transmitted towards the destination can be “overheard” at the other Mobile Terminals (Partner). Partners (Adjacent Mobile Terminals) process this overheard information and re-transmit towards the destination. This approach successfully gives solution to the problem of just one receiving antenna in a handset. In particular, the end-to-end bit-error rate (BER) of relaying mobile station is simulated. This paper proposes a novel feedback-based multi-hopped relay network over noise effect to offers better solution for Passive optical networks.