Title :
A Statistical-CSI-Based Scheme for Multiple Description Coding Multicast in CRNs
Author :
Kewen Yang ; Wenjun Xu ; Shengyu Li ; Jiaru Lin ; Weiling Wu
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
This letter investigates the throughput optimization of multiple description coding multicast (MDCM) in cognitive radio networks (CRNs) by taking into account both statistical channel state information (CSI) and the interference from the primary network. A statistical-CSI-based MDCM scheme with low complexity is proposed, which is shown to be able to approach the perfect-CSI performance with large multicast group size. For comparison, conventional multicast (CM) is also analyzed. A tight upper bound is derived, which decays to zero rapidly when the multicast group size grows. Numerical results are also presented to validate the proposed scheme.
Keywords :
channel coding; cognitive radio; multicast communication; radio networks; statistical analysis; CRN; cognitive radio networks; conventional multicast; multicast group size; multiple description coding multicast; perfect-CSI performance; primary network interference; statistical channel state information; statistical-CSI-based MDCM scheme; throughput optimization; Complexity theory; Encoding; Interference; Resource management; Signal to noise ratio; Throughput; Wireless communication; Cognitive radio networks; multiple description coding multicast; statistical CSI;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2013.2297338
