WiMax: The Emergence of Wireless Broadband
IT Professional
OFDM-Based Broadband Wireless Networks: Design and Optimization
OFDM-Based Broadband Wireless Networks: Design and Optimization
Optimal relay station placement in IEEE 802.16j networks
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Robust channel estimation for OFDM wireless communication systems - an H∞ approach
IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Cooperative Strategies and Capacity Theorems for Relay Networks
IEEE Transactions on Information Theory
On the optimal number of relay stations in two-hop relay cooperative cellular networks
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
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In this paper, we consider an OFDMA-based two-hop relay network which consists of a single base station, dedicated fixed relay stations and subscriber stations. We investigate the optimal location of the relay stations aiming to maximize system throughput. We also focus on the impact of different relay strategies (i.e., decode-and-forward vs. amplify-and-forward) for each source-destination pair on the network performance. For a wireless network operating in a multiuser frequency-selective slow-fading environment, it is an important task for the network operator to decide where to place the relay stations and how to relay. Through a system lever simulation, we obtain the network performance of our proposed approach in an OFDMA based cooperative environment for different relay locations and different relay strategies. In the end, we give the optimal location of RS and present the impact of RS number on the system capacity under our assumptions. Our approach will be heuristic in practice for the deployment of relay stations in the networks.