Channel Access Statistics of Parallel Multiuser Scheduling

— Generalized selection multiuser diversity (GSMuD) is a new scheduling scheme which provides a near-optimal low-complexity solution to parallel access multiuser scheduling. In this scheme, a total of L users awaiting transmissions are ranked by their signal-to-noise ratios (SNRs) and the Nc (1 ≤ Nc ≤ L) users with the largest absolute (or normalized) SNRs are selected for parallel channel access. In this paper, we analyze the second order statistics (including the level crossing rate and average fade duration) and channel access performance (including the average channel access rate, the average access time, and the average waiting time) of the proposed GSMuD scheme, taking into account different types of generalized fading channels. Simulation results verify the derived analytical formulas. Numerical results show that compared to the selective multiuser diversity (SMuD), the GSMuD significantly improves the channel access rate and access time, and reduces the access waiting ti...

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Yao Ma, Dongbo Zhang
• Keywords: Channel Access, Channel Access Rate, Communications, ICC 2007, Multiuser Diversity