INFORMATION CHANGE THE WORLD

International Journal of Wireless and Microwave Technologies(IJWMT)

ISSN: 2076-1449 (Print), ISSN: 2076-9539 (Online)

Published By: MECS Press

IJWMT Vol.2, No.1, Feb. 2012

Adaptive Cross-layer Resource Allocation by HNN in OFDM-MISO System

Full Text (PDF, 224KB), PP.66-73


Views:54   Downloads:3

Author(s)

Mingyan Jiang,Yulong Liu

Index Terms

Hopfield neural network;multi-user OFDM-MISO system;proportional fairness;cross-layer design;resource allocation

Abstract

This paper presents an adaptive cross-layer resource allocation problem with the fairness in multi-user OFDM-MISO communication systems, and provides two solutions with Hopfield Neural Network (HNN) and Genetic Algorithm (GA) for the problem. We utilized HNN’s characteristics such as parallel processing, fast convergence speed and easy convergence to the optimum, to solve this problem under the conditions of proportional fairness for satisfying system performances and users’ requirements. The method is simplified in the computation by dividing the bit-loading matrix into three matrixes. The simulation results show that HNN and GA can effectively solve optimization problems of resource allocation in such system, and results of selected HNN and GA methods are more effective than that of the traditional method.

Cite This Paper

Mingyan Jiang,Yulong Liu,"Adaptive Cross-layer Resource Allocation by HNN in OFDM-MISO System", IJWMT, vol.2, no.1, pp.66-73, 2012.

Reference

[1]Xin Ji, Jianwei Huang, Mung Chiang, Catthoor, F.; “Downlink OFDM Scheduling and Resource Allocation for Delay Constraint SVC Streaming”; Communications, 2008. ICC '08. IEEE International Conference on 19-23 May 2008 Page(s):2512 – 2518.

[2]Wei Xu, Chunming Zhao, Peng Zhou, Yijin Yang; “Efficient Adaptive Resource Allocation for Multiuser OFDM Systems with Minimum Rate Constraints”; Communications, 2007. ICC '07. IEEE International Conference on 24-28 June 2007. pp:5126 – 5131.

[3]Todini, A.; Moretti, M.; Valletta, A.; Baiocchi, A.; “A Modular Cross-Layer Scheduling and Resource Allocation Architecture for OFDMA Systems”; Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE Nov. 27 2006-Dec. 1, 2006 , pp:1 – 6.

[4]Xuebing Pei, Gan Liu, Guangxi Zhu, Li Li; “Adaptive Cross-layer Scheduling and Dynamic Subcarrier Allocation Algorithm Based on Service-differentiation in Multiuser OFDMA System”; Communications and Networking in China, 2007. CHINACOM '07. Second International Conference on 22-24 Aug. 2007, pp:1057 – 1061.

[5]Jianwei Wang; Yuping Zhao; Korhonen, T.; “Cross Layer Optimization with Complete Fairness Constraints in OFDMA Relay Networks”; Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE Nov. 30 2008-Dec. 4 2008, pp:1 – 5. Adaptive Cross-layer Resource Allocation by HNN in OFDM-MISO System 73

[6]Peng Cheng, Guanding Yu, Zhaoyang Zhang, Peiliang Qiu; “A Cross-Layer Fair Resource Allocation Algorithm for OFDMA Systems”; Communications, Circuits and Systems Proceedings, 2006 International Conference, Volume 2, 25-28 June 2006, pp:1342 – 1346.

[7]Kemal Karakayali, Joseph H. Kang, Murali Kodialam, and Krishna Balachandran; “Cross-Layer Optimization for OFDMA-Based Wireless Mesh Backhaul Networks”; Wireless Communications and Networking Conference, 2007, WCNC 2007, IEEE 11-15 March 2007, pp.276 – 281.

[8]Daniel Calabuig, José F. Monserrat, David Gómez-Barquero, and Narcís Cardona; “A delay-Centric Dynamic Resource Allocation Algorithm for Wireless Communication Systems Based on HNN”; Vehicular Technology, IEEE Transactions, Volume 57, Issue 6, Nov. 2008, pp.3653 – 3665.

[9]Mingyan Jiang, Rubio F., Yong Wang, Gomez, J., Dongfeng Yuan. User Selection for Maximum Sum-rate in Multi-user and MISO System with Evolutionary Algorithm, Cross Layer Design, IWCLD '07, Sept. 2007, pp: 74 – 77.

[10]Vincent L. N. Lau,Yu K-Wong Ricky Kwok. Channel-Adaptive Technologies and Cross-Layer Designs for Wireless Systems with Multiple Antennas [J], Wiley-Interscience, 2006, 44(9):28-28.