QoS considerations in multihop radio networks

Abstract

Traditionally, consumer wireless telecommunications services have been provided using cellular architectures where many mobile wireless terminals communicate directly with a single fixed base station with a wired connection to the public telecommunications infrastructure. Whereas in multihop radio networks, the terminals communicate via multiple nodes between them instead of direct link between a source and destination. In this thesis, we work on a wireless system wherein traditional transmission constraints are removed in order to allow direct communication between mobile terminals. Multihop relaying networks allow mobile terminals to participate in the transmission of information when they are neither the initial source or the final destination (ad hoc mode) or between a base station and the destination mobile station containing multiple relaying hop nodes (cellular mode). Various QoS parameters like end-to-end BER, effect of MAI and error burst length histogram are evaluated at the physical layer under various scenarios.