Efficient Multi-hop Communication in Beyond 3G Mobile Radio Networks

Authors:
Ole Klein;Michael Einhaus;Alexander Federlin;Erik Weiss
Affiliations:
Communication Networks, RWTH Aachen University, Aachen, Germany;Communication Networks, RWTH Aachen University, Aachen, Germany;Communication Networks, RWTH Aachen University, Aachen, Germany;Communication Networks, RWTH Aachen University, Aachen, Germany
Venue:
Wireless Personal Communications: An International Journal
Year:
2008

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Abstract

We propose and evaluate the Frame Descriptor Table (FDT) concept, a method to increase efficiency of signalling resource allocation in frame based Medium Access Control (MAC) protocols. MAC protocols for Beyond 3G mobile radio networks, also known as IMT-Advanced systems, will operate on high data rate channels resulting in short packet transmission duration. The scheduling overhead per packet must also be reduced, correspondingly. The new concept is suitable also to reduce the MAC control overhead spent per hop in mobile radio systems with Relay Enhanced Cells (REC)s that apply multi-hop communication by dynamically allocating TDMA channels. This paper's focus is on performance evaluation of multi-hop scenarios using analytical models and event-driven stochastic simulations. It is shown that FDT based MAC protocols are suited to increase throughput and reduce delay in REC based cellular radio systems.