Published January 1, 2011
| Version v1
Journal article
Open
Green Wireless Communications via Cognitive Dimension: An Overview
Creators
- 1. Bogazici Univ, Telemat Res Ctr TAM, TR-80815 Bebek, Turkey
- 2. Bogazici Univ, Dept Comp Engn, TR-80815 Bebek, Turkey
Description
Cognitive functions in wireless network nodes are beneficial for leveraging intricate trade-offs among energy efficiency, performance and practicality. There are two fundamental but entangled aspects of cognitive radios in the green communications context: leveraging CRs for energy efficiency and operation of CRs with energy efficiency. In practice, these two objectives overlap since the improvement of energy efficiency with CRs require efficient CRs, whereas efficient wireless communications require cognitive abilities at different network components and protocols. However, there are intrinsic challenges such as hardware complexity, algorithmic problems, and design trade-offs. In this article we present and discuss these issues to highlight the case of CRs for green wireless communication systems. Additionally, some fundamental trade-offs that emerge from these challenges and their impact on greening communications via cognitive functions are outlined.
Files
bib-09f9f42b-07f3-4659-aaba-b95cd329aa12.txt
Files
(124 Bytes)
| Name | Size | Download all |
|---|---|---|
|
md5:76f63202dcf724e23134337dca125300
|
124 Bytes | Preview Download |