optimal resource allocation for wireless networks with inter-cell interference
P.Karthik,G.Kumaran
Published in International Journal of Advanced Research in Electronics, Communication & Instrumentation Engineering and Development
ISSN: 2347 -7210 Impact Factor:1.9 Volume:2 Issue:1 Year: 08 April,2014 Pages:6-11
Abstract
The paper describes a Resource allocation is an important issue in orthogonal frequency division multiple access (OFDMA) systems. For multicell systems, the interference across different cells makes the optimization of resource allocation difficult. While inter cell interference (ICI) for the downlink of multi-cell systems in general and orthogonal frequency division multiple access networks, the uplink has received less attention. Inter-cell interference coordination (ICIC) schemes can be viewed as a scheduling strategy used to limit the inter-cell interference such that cell-edge users in different cells preferably are scheduled on complementary parts of the spectrum when needed. The common theme of ICIC avoidance schemes is to apply restrictions to the usage of downlink resources such time/frequency and/or transmit power resources. Such coordination of restrictions will provide an opportunity to limit the interference generation in the area of the cellular network. Accordingly, Signal to Interference and Noise Ratio (SINR) can be improved at the receivers in the coverage area, which will provide capability for increased (cell-edge) data-rates over the coverage area, or increased coverage for given data-rates.
Kewords
OFDMA, resource allocation, inter-cell interference, signal-to-interference and noise ratio, inter-cell interference coordination
Reference
[1] Yawed Yu,Xiaojing Huang, Eryk Dutkiewicz, BIOBLIOGRAPHY Markus Mueck, ―Downlink resource allocation for P.Karthik is presently pursuing ME in Embedded next generation wireless networks with inter-cell Systems Technologies from S K P Engineering interference,‖ IEEE Trans. Wireless Comm.,vol. 12, college,Tiruvannamalai , India. His research include no.4, pp. 1783–1793, 2013 LTE systems,OFDM systems and mobile [2] X. Huang,Yu, E. Dutkiewicz, and M. Mueck, ―Load communication distribution aware soft frequency reuse for inter-cell G.Kumaran is serving Assistant Professor in interference mitigation and throughput maximization Electronics and Communication Engineering, S K P in LTE networks,‖ in Proc. 2011 IEEE International Engineering college, Tiruvannamalai, India. His Conference on Communications, pp. 1-6. research include wireless and mobile communication [3] N. Ksairi,W. Hachem, P. Bianchi,and P. Ciblat, ―Resource allocation for downlink cellular OFDMA systems—part I: optimal allocation,‖IEEE Trans. Signal Proc., vol. 58, no. 2, pp. 720–734, 2010. [4] N. Ksairi, P. Bianchi, P. Ciblat, and W. Hachem, International Journal of Advanced Research in Electronics, Communication and Instrumentation Engineering Volume-1: Issue-1 November 2013 ISR Journals and Publications Page 6 ―Resource allocation for downlink cellular OFDMA systems—part II: practical algorithms and optimal
