Cell outage management in LTE networks
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
Relay technologies for WiMAX and LTE-advanced mobile systems
IEEE Communications Magazine
Self-configuration and self-optimization for LTE networks
IEEE Communications Magazine
Integrated power controlled rate adaptation and medium access control in wireless mesh networks
IEEE Transactions on Wireless Communications
Interference coordination for OFDM-based multihop LTE-advanced networks
IEEE Wireless Communications
Performance of cellular networks with relays and centralized scheduling
IEEE Transactions on Wireless Communications
Power control in distributed cooperative OFDMA cellular networks
IEEE Transactions on Wireless Communications - Part 2
Performance evaluation of frequency planning schemes in OFDMA-based networks
IEEE Transactions on Wireless Communications - Part 1
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We present an adaptive power and rate TDMA scheduling algorithm for unicasting messages from base stations to their associated mobile clients in a cellular wireless network. To enhance network robustness, we consider a relay-aided system under which relay stations are placed in fixed locations in each cell area. Upon a base station failure, a relay station is capable of receiving unicast transmissions issued by a neighboring base station, or by a relay station placed in a neighboring cell. Our adaptive power and rate scheduling algorithm reacts to base station failures by reconfiguring the unicast schedule and packet distribution routes. The objective of this paper is to study the performance behavior attained for such a scheme under pre-failure and post-failure scenarios. We show that our failover scheduling algorithm is effective in adapting to base station failures, limiting the performance degradation incurred.