The SS-SCR Scheme for Dynamic Spectrum Access | Zendy

Vinay Thumar | Zendy; Taskeen Nadkar | Zendy; U.B. Desai | Zendy; S. N. Merchant | Zendy

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The SS-SCR Scheme for Dynamic Spectrum Access

Author(s) -

Vinay Thumar,

Taskeen Nadkar,

U.B. Desai,

S. N. Merchant

Publication year - 2012

Publication title -

journal of computer networks and communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.355

H-Index - 23

eISSN - 2090-715X

pISSN - 2090-7141

DOI - 10.1155/2012/851204

Subject(s) - computer science , cognitive radio , scheme (mathematics) , disjoint sets , reliability (semiconductor) , computer network , transmission (telecommunications) , software deployment , cloud computing , provisioning , wireless , telecommunications , mathematics , mathematical analysis , power (physics) , physics , combinatorics , quantum mechanics , operating system

We integrate the two models of Cognitive Radio (CR), namely, the conventional Sense-and-Scavenge (SS) Model and Symbiotic Cooperative Relaying (SCR). The resultant scheme, called SS-SCR, improves the efficiency of spectrum usage and reliability of the transmission links. SS-SCR is enabled by a suitable cross-layer optimization problem in a multihop multichannel CR network. Its performance is compared for different PU activity patterns with those schemes which consider SS and SCR separately and perform disjoint resource allocation. Simulation results depict the effectiveness of the proposed SS-SCR scheme. We also indicate the usefulness of cloud computing for a practical deployment of the scheme

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