Title :
On the Effective Capacity of Two-Hop Communication Systems
Author :
Qiao, Deli ; Gursoy, Mustafa Cenk ; Velipasalar, Senem
Author_Institution :
Dept. of Electr. Eng., Univ. of Nebraska-Lincoln, Lincoln, NE, USA
Abstract :
In this paper, two-hop communication between a source and a destination with the aid of an intermediate relay node is considered. Both the source and intermediate relay node are assumed to operate under statistical quality of service (QoS) constraints imposed as limitations on the buffer overflow probabilities. It is further assumed that the nodes send the information at fixed power levels and have perfect channel side information. In this scenario, the maximum constant arrival rates that can be supported by this two-hop link are characterized by finding the effective capacity. Through this analysis, the impact upon the throughput of having buffer constraints at the source and intermediate-hop nodes is identified.
Keywords :
channel capacity; quality of service; radio links; relays; statistical analysis; wireless channels; buffer constraint; buffer overflow probability; channel side information; intermediate relay node; intermediate-hop node; maximum constant arrival rate; source node; statistical quality of service constraint; two hop communication system; two-hop link; Bandwidth; Fading; Peer to peer computing; Quality of service; Relays; Signal to noise ratio; Wireless communication;
Conference_Titel :
Communications (ICC), 2011 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-61284-232-5
Electronic_ISBN :
1550-3607
DOI :
10.1109/icc.2011.5962976
