| The importance of relaying has arisen lately as a cost effective technique for extending the coverage of wireless networks. In this thesis, we explore the application of rateless coding to relay networks. The rateless code applied here is a rate compatible code based on a standard QC-LDPC code. The throughput performance for three TDD relaying methods, named startover, combine and continue, is examined. It is shown that continue relaying is the best of the three relaying techniques, with least complexity. The theoretical throughput performance of linear relaying is derived and validated using simulations. The thesis generalizes the findings to triangular relay networks. Continue relaying is applied to a single cell wireless system, to evaluate how much it can enhance the performance of such a practical system against Additive White Gaussian Noise (AWGN), pathloss and shadowing. Rateless continue-relaying can vastly improve the throughput performance and reduce the likelihood of outage events. |
