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Joint design and separation principle for opportunistic spectrum access (2006)
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| Venue: | IEEE Transactions on Information Theory |
| Citations: | 136 - 34 self |
BibTeX
@INPROCEEDINGS{Chen06jointdesign,
author = {Yunxia Chen and Qing Zhao},
title = {Joint design and separation principle for opportunistic spectrum access},
booktitle = {IEEE Transactions on Information Theory},
year = {2006}
}
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Abstract
Abstract — This paper develops optimal strategy for opportunistic spectrum access (OSA) by integrating the design of spectrum sensor at the physical layer with that of spectrum sensing and access policies at the medium access control (MAC) layer. The design objective is to maximize the throughput of secondary users while limiting their probability of colliding with primary users. By exploiting the rich structures of the problem, we establish a separation principle: the design of spectrum sensor and access policy can be decoupled from that of sensing policy without losing optimality. This separation principle enables us to obtain closedform optimal sensor operating characteristic and access policy, leading to significant complexity reduction. It also allows us to study the inherent interaction between spectrum sensor and access policy and the tradeoff between false alarm and miss detection in opportunity identification. I.
Keyphrases
separation principle access policy opportunistic spectrum access joint design spectrum sensor medium access control inherent interaction false alarm design objective significant complexity reduction secondary user physical layer opportunity identification primary user spectrum sensing rich structure sensing policy closedform optimal sensor miss detection optimal strategy
