Energy-Efficient Power Allocation for OFDM-Based Cognitive Radio Systems with Imperfect Spectrum Sensing

Errong Pei; Sheng Wang; Zhizhong Zhang

doi:10.1109/wicom.2011.6036682

ScienceGate Book Chapters

JOURNAL ARTICLE

Energy-Efficient Power Allocation for OFDM-Based Cognitive Radio Systems with Imperfect Spectrum Sensing

Errong Pei Sheng Wang Zhizhong Zhang

Year: 2011 Pages: 1-3

DOI: 10.1109/wicom.2011.6036682

Get Full-Text PDF Get Analytical Report

Abstract

Based on existing sensing technology, namely imperfect spectrum sensing, we study an energy efficient power allocation problem for OFDM-based cognitive radio systems, and its optimal solution is derived, and further an energy efficient power allocation scheme is proposed. The proposed scheme can not only save valuable resource such as battery life by selectively allocating power to underutilized sub carriers, but also fully make use of the limited spectrum resource.

Keywords:

Cognitive radio Orthogonal frequency-division multiplexing Computer science Imperfect Resource allocation Efficient energy use Scheme (mathematics) Energy (signal processing) Resource management (computing) Power (physics) Spectrum management Battery (electricity) Frequency allocation Electronic engineering Telecommunications Computer network Wireless Electrical engineering Engineering Mathematics

Metrics

Cited By

1.10

FWCI (Field Weighted Citation Impact)

Refs

0.80

Citation Normalized Percentile

Is in top 1%

Is in top 10%

Citation History

Topics

Cognitive Radio Networks and Spectrum Sensing

Physical Sciences → Computer Science → Computer Networks and Communications

Advanced MIMO Systems Optimization

Physical Sciences → Engineering → Electrical and Electronic Engineering

Advanced Wireless Network Optimization

Physical Sciences → Engineering → Electrical and Electronic Engineering

Energy-Efficient Power Allocation for OFDM-Based Cognitive Radio Systems with Imperfect Spectrum Sensing

Abstract

Metrics

Citation History

Topics

Related Documents

Energy-Efficient Power Allocation for OFDM-Based Cognitive Radio Networks with Imperfect Spectrum Sensing

Energy-Efficient Power Allocation in Cognitive Radio Systems With Imperfect Spectrum Sensing

Energy-Efficient Resource Allocation for OFDM-Based Cognitive Radio Networks with Imperfect Spectrum Sensing

Energy-efficient power allocation algorithms for OFDM-based cognitive relay networks with imperfect spectrum sensing

Energy-Efficient Power Allocation with Guaranteed QoS Under Imperfect Sensing for OFDM-Based Heterogeneous Cognitive Radio Networks