Optimal Channel Sensing for Heterogeneous Cognitive Networks: An Analytical Approach

Title
Optimal Channel Sensing for Heterogeneous Cognitive Networks: An Analytical Approach
Author(s)
유희정
Keywords
OPPORTUNISTIC SPECTRUM ACCESS; RADIO NETWORKS
Issue Date
201312
Publisher
KSII-KOR SOC INTERNET INFORMATION
Citation
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, v.7, no.12, pp.2987 - 3002
Abstract
The problem of optimal channel sensing in heterogeneous cognitive networks is considered to maximize the system throughput performance. The characteristics of an optimal operating sensing point maximizing the overall system rate are investigated under several rate criteria including the sum rate, the minimum of the primary and secondary rates, and the secondary rate with a guaranteed primary rate. Under the sum rate criterion, it is shown that the loss by imperfect sensing is no greater than half of the sum rate achieved by the perfect time sharing approach in a two user case if the sensing point is optimally designed.
URI
http://hdl.handle.net/YU.REPOSITORY/28037http://dx.doi.org/10.3837/tiis.2013.12.002
ISSN
1976-7277
Appears in Collections:
공과대학 > 모바일정보통신공학과 > Articles
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