Radio Resource Management in OFDMA-Based Cellular Networks Enhanced with Fixed and Nomadic Relays

—The provision of very high data rates in a ubiquitous manner throughout the service area is a great challenge for 4G and beyond-4G wireless networks. Towards that end, the deployment of fixed relays by the operators has become an accepted radio access network concept in various standardization activities including LTE-A and 802.16j. It is envisaged that next-generation networks will comprise a plethora of wireless relay stations. Worthy of mention is the plug-and-play type of relay known as nomadic relay. We devise novel radio resource management (RRM) schemes to facilitate the operation of fixed relay stations (FRSs) and nomadic relay stations (NRSs) in OFDMA-based multicellular networks. Two schemes of different decentralization levels are devised and classified as distributed and semi-centralized. A novel user-based dynamic routing or link selection that significantly reduces the feedback overhead is employed. We develop methods by which the NRSs act autonomously to acquire r...

• Type: Conference
• Year: 2010
• Where: WCNC
• Authors: Mohamed Salem, Abdulkareem Adinoyi, Halim Yanikomeroglu, Young-Doo Kim
• Keywords: Computer Networks, Nomadic Relay, Relay, Relay Stations, WCNC 2010