Throughput and Delay Scaling of General Cognitive Networks 1/47 Throughput and Delay Scaling of General Cognitive Networks Wentao Huang Xinbing Wang Department of Electronic Engineering Shanghai Jiao Tong University April 12,2011 4口“③·4E4色卡21=
Throughput and Delay Scaling of General Cognitive Networks 1 / 47 Throughput and Delay Scaling of General Cognitive Networks Wentao Huang Xinbing Wang Department of Electronic Engineering Shanghai Jiao Tong University April 12, 2011
Throughput and Delay Scaling of General Cognitive Networks 2147 Outline Introduction Backgrounds Motivation and Result System Models Basic Models Operation Rules The Hybrid Protocol Model Definition Feasibility Transmission Opportunities Cell Partitioning Round-Robin Mode Independent Relay Mode Optimal Performance Scaling 4口40·4E，4色下空引=
Throughput and Delay Scaling of General Cognitive Networks 2 / 47 Outline Introduction Backgrounds Motivation and Result System Models Basic Models Operation Rules The Hybrid Protocol Model Definition Feasibility Transmission Opportunities Cell Partitioning Round-Robin Mode Independent Relay Mode Optimal Performance Scaling
Throughput and Delay Scaling of General Cognitive Networks 3147 LIntroduction Outline Introduction Backgrounds Motivation and Result System Models Basic Models Operation Rules The Hybrid Protocol Model Definition Feasibility Transmission Opportunities Cell Partitioning Round-Robin Mode Independent Relay Mode Optimal Performance Scaling 4口4·4E，4色F主1=月QC
Throughput and Delay Scaling of General Cognitive Networks 3 / 47 Introduction Outline Introduction Backgrounds Motivation and Result System Models Basic Models Operation Rules The Hybrid Protocol Model Definition Feasibility Transmission Opportunities Cell Partitioning Round-Robin Mode Independent Relay Mode Optimal Performance Scaling
Throughput and Delay Scaling of General Cognitive Networks 4147 LIntroduction LBackgrounds Cognitive Networks Primary users(with priority)and secondary users (opportunistic). A A Form two networks overlapping in all dimensions. spatial,temporal,spectral Both networks could be arbitrary A ad hoc networks. Primary User Secondary User What is the throughput and delay performance of the primary and secondary networks? 口94三卡4老卡2引马
Throughput and Delay Scaling of General Cognitive Networks 4 / 47 Introduction Backgrounds Cognitive Networks I Primary users (with priority) and secondary users (opportunistic). I Form two networks overlapping in all dimensions. I spatial, temporal, spectral I Both networks could be arbitrary ad hoc networks. What is the throughput and delay performance of the primary and secondary networks?
Throughput and Delay Scaling of General Cognitive Networks 5147 LIntroduction LBackgrounds Throughput Delay in Cognitive Networks Figure:Opportunistic channel access. Secondary users suffer from throughput and delay penalty. Depends on how the primary network operates. What is the throughput and delay performance of the primary and secondary networks?
Throughput and Delay Scaling of General Cognitive Networks 5 / 47 Introduction Backgrounds Throughput & Delay in Cognitive Networks Figure: Opportunistic channel access. I Secondary users suffer from throughput and delay penalty. I Depends on how the primary network operates. What is the throughput and delay performance of the primary and secondary networks?