Accession Number ADA564163
Title Decentralized Cooperative Networking.
Publication Date Feb 2012
Media Count 11p
Personal Author J. L. Cimini
Abstract Future tactical networks will be complex, with severe constraints on energy and bandwidth, operating in dynamic and unpredictable environments. By exploiting the broadcast nature of a wireless medium and spatially dispersed nodes, some of the advantages of using multiple antennas can be realized through cooperation among nodes in a network. Recent work has demonstrated that cooperation can provide increased range, improved efficiency, and more reliable and longer lasting connectivity. However, in large, complex networks, centralized control will likely be infeasible, and the overhead required for communications between the cooperating nodes could be excessive. To address these issues, we focused on developing and analyzing cooperative strategies which work well without centralized control or inter-node communications, and which are based on locally obtained information. In particular, we devised several decentralized techniques for relay selection and demonstrated the efficacy of these approaches in terms of outage, spectral efficiency, and energy efficiency. We also developed and evaluated several techniques for decentralized cooperative routing. Finally, we initiated a structured study, based on rate-distortion theory, to quantify the overhead-performance trade-off, and to develop optimal algorithms based on source-coding solutions.
Keywords Radio broadcasting
Radiotelephones
Relays
Reliability
Routing
Wireless computer networks


 
Source Agency Non Paid ADAS
NTIS Subject Category 62 - Computers, Control & Information Theory
45C - Common Carrier & Satellite
Corporate Author Delaware Univ., Newark. Dept. of Electrical and Computer Engineering.
Document Type Technical report
Title Note Final rept. 1 Mar 2009-30 Nov 2011.
NTIS Issue Number 1302
Contract Number FA9550-09-1-0175

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