A Novel Hybrid CQI Feedback Method For Throughput Improvement In 3GPP LTE Systems
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2013 by IJETT Journal|
|Year of Publication : 2013|
|Authors : Onkar Dandekar|
Onkar Dandekar. "A Novel Hybrid CQI Feedback Method For Throughput Improvement In 3GPP LTE Systems". International Journal of Engineering Trends and Technology (IJETT). V4(10):4546-4549 Oct 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group.
Frequency Selective Scheduling (FSS) is a prominent characteristic in 3GPP LTE systems. Frequency scheduling depends on Channel Quality Indicator(CQI) feedback report by mobile station. CQI being control information must use minimal bits maintaining the performance of system. This paper recommends a new CQI feedback method which uses existing schemes for improvement of performance of system. It throws light on enhancing throughput of Distributed Haar scheme with suitable usage of Best-M scheme. Proposed technique improves throughput while maintaining overhead reduction achieved by Haar compression schemes. Performance results indicate noticeable rise in throughput of the system as compared to Distributed Haar technique.
 E. Dahlman, H. Ekström, A. Furuskär, Y. Jading, J. Karlsson, M. Lundevall, and S. Parkvall, "The 3G Long Term Evolution – Radio Interface Concepts and Performance Evaluation," IEEE Vehicular Technology Conference (VTC) 2006 Spring, vol.1, no., pp.137,141, 7-10 May 2006.
 Xiaowen Li; Qianjun Fang; Liuwei Shi, ”A effective SINR link to system mapping method for CQI feedback in TD-LTE system,” IEEE 2nd International Conference on Computing, Control and Industrial Engineering (CCIE), 2011, vol.2, pp.208,211, 20-21 Aug. 2011.
 Xi Chen; Haike Yi; Hanwen Luo; Hui Yu; Hailong Wang, ”A novel CQI calculation scheme in LTE/LTE-A systems,” International Conference on Wireless Communications and Signal Processing (WCSP), 2011, vol., no., pp.1,5, 9-11 Nov 2011.
 R1-051045, ”CQI report and scheduling procedure,” Samsung, RAN1 Meeting 42 , San Diego, USA, October, 2005, available at www.3gpp.org.
 R1-062543,”Comparison of CQI feedback schemes”, Mitsubishi Electric, RAN1 Meeting 46 , Seoul, Korea, October 2006 , available at www.3gpp.org.
 R1-051334, ”CQI Feedback Scheme for EUTRA”, Motorola, RAN1 Meeting 43 , Seoul, Korea, November, 2005, available at www.3gpp.org.
 R1-061777, ”DCT based CQI reporting scheme”, LG Electronics, RAN1 LTE Ad Hoc ,Cannes, France, June, 2006, available at www.3gpp.org.
 R1-070187, ”DCT Partitioning for CQI Reporting”, Panasonic, RAN1 Meeting 47 , Sorrento, Italy, January 2007 , available at www.3gpp.org.
 R1-060821, ”Downlink adaptation/scheduling guided by an ef?cient CQI-feedback scheme”, Huawei, RAN1 Meeting 44 , Athens, March, 2006, available at www.3gpp.org.
 R1-063086, “Overhead reduction of Best-M based CQI reporting “, Huawei RAN1 meeting #47, Riga, Latvia, 6 -10 November, 2006, available at www.3gpp.org.
 Afshin Haghighat, Zinan Lin and Guodong Zhang, “Haar Compression for Efficient CQI Feedback”, IEEE Wireless Communications and Networking Conference, pp. 819-823, 2008.
3GPP LTE CQI, LTE uplink feedback, Distributed Haar feedback, Best-M feedback.