Maximizing Effective Capacity Over Wireless Links Under Average and Peak Power Constraints Conference Paper

abstract

• We propose the quality-of-service (QoS) driven power allocation scheme for wireless links under average and peak power constraints. By integrating information theory with the principle of effective capacity, our proposed scheme aims at maximizing the system throughput subject to a given delay-QoS constraint. Over the block fading channel, we derive the optimal power allocation scheme to maximize the effective capacity. The analyses and numerical results show that our optimal power allocation scheme converges to the despicking water-filling scheme when the QoS constraint becomes very loose. On the other hand, our optimal power allocation scheme reduces to the dispicking channel inversion scheme when the QoS constraint gets very stringent. Two non-optimal power allocation schemes are described for comparison purposes. We also propose and evaluate the independent optimization for the multicarrier system. 2012 IEEE.

name of conference

• 2012 IEEE International Conference on Communications (ICC)

authors

• Zhang, Xi

published proceedings

• 2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)

author list (cited authors)

• Cheng, W., Zhang, X. i., & Zhang, H.

citation count

• 5

complete list of authors

• Cheng, Wenchi||Zhang, Xi||Zhang, Hailin

publication date

• June 2012

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• 2013 National Conference on Communications, NCC 2013  Journal

keywords

• Average Power
• Convex Optimization
• Mobile Wireless Networks
• Peak Power
• Power Allocation
• Quality-of-service (qos)

Digital Object Identifier (DOI)

• 10.1109/icc.2012.6364513

International Standard Book Number (ISBN) 13

• 9781457720529

start page

• 5190

end page

• 5194

volume

• 1

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Ficc.2012.6364513