Research :: Cooperative Communications in Wirelsss Networks
Cooperative transmission has received a lot of attention because it can enhance the reliability of data transmission, provide broader and low-cost coverage and combat shadowing and fading effects. For cooperative networks with multiple relay nodes that can assist the source transmission through either multi-hop relaying or cooperative diversity, relay selection has been introduced as an efficient technique.
Relay selection allows a single relay node (the best node according to some well defined criterion) to participate in the cooperation process and has been proven that it uses more efficiently the system resources (e.g. power, bandwidth) without affecting the system performance. The main advantage of relay selection is the implementation simplicity, as it does not require complex physical layer transmission techniques (e.g. distributed space-time codes) or explicit synchronization processes. This projects aims to solve various problems in cooperative communications in wireless networks.
This work is concerned with various problems in cooperative communications in wireless networks, such as energy harvesting in cooperative networks, opportunistic finite buffer-aided relay selection, etc.
Journal papers:
| [2] | Ioannis Krikidis, Themistoklis Charalambous and John S. Thompson: "Opportunistic Finite Buffer-Aided Relay Selection with Time Constraints", IEEE Transactions on Wireless Communications (accepted) Abstract | Full text: to be uploaded |
| [1] | Ioannis Krikidis, Themistoklis Charalambous and John S. Thompson: "Stability Analysis and Power Optimization for Energy Harvesting Cooperative Networks", IEEE Signal Processing Letters, Volume 19 (1), pp. 20-23, January, 2012 Abstract | Full text: PDF |
Conference papers:
| [1] | Ioannis Krikidis, Themistoklis Charalambous and John Thompson: "Opportunistic Relay Selection for Cooperative Networks with Buffers", in The IEEE International Conference on Communications (ICC), 2012. Abstract |
