Title :
QoS performance in spatial cognitive systems
Author :
Odeh, Maha ; Zorba, Nizar ; Skianis, Charalambos ; Verikoukis, Christos
Author_Institution :
Univ. of Jordan, Amman, Jordan
Abstract :
Multiple Input Multiple Output (MIMO) delivers service simultaneously to more than one user which adds a new dimension, the spatial one, to be optimized in Cognitive Radio (CR). In this paper, statistical optimization techniques are carried out to assess the system performance where each type of users has different Quality of Service (QoS) demands. Closed form expressions are derived for different scenarios and are obtained regarding two QoS indicators: minimum guaranteed rate and maximum allowed scheduling delay. The primary users and secondary users performance within such scenarios are mathematically formulated and compared their results to simulations.
Keywords :
MIMO communication; cognitive radio; optimisation; quality of service; statistical analysis; QoS; multiple input multiple output; quality of service; spatial cognitive systems; statistical optimization techniques; Array signal processing; Cognition; Delay; Quality of service; Signal to noise ratio; Throughput; Wireless communication;
Conference_Titel :
Computer Aided Modeling, Analysis and Design of Communication Links and Networks (CAMAD), 2010 15th IEEE International Workshop on
Conference_Location :
Miami, FL
Print_ISBN :
978-1-4244-7634-3
Electronic_ISBN :
978-1-4244-7633-6
DOI :
10.1109/CAMAD.2010.5686974
