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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 6    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 6,June 2012
Improved spectral utilization in multi-hop relay networks using frequency reuse for 4G networks
Full Text(PDF, )  PP.971-975  
M.Gopu, Dr. Ritesh Khanna
multi hop, frequency reuse, interference cancellation
This paper presents a method to improve the spectral utilization in Multi-hop Relay (MMR) networks. Co-channel interference is considered as a parameter to analyze the performance of MMR (IEEE 802.16j) based relay networks. Frequency reuse technique is a way to improve the spectral utilization. Since the same frequency band is used by Relay stations and Base Station, co-channel interference within a cell becomes a major problem. This degrades the uniform Quality of Service (QoS) within the cell. As an effective way to analyze the co-channel interference, signals are retransmitted again by the transmitting stations. From the simulation results it is observed that when the number of mobile stations is increased, signal to interference ratio (SIR) is improved.
[1] K.M. Park, C.G.Kang,D.Y.Chang, S.H.Song, J.G.Ahn and J.T.Ihm,“Relay-enhanced Cellular Performance of OFDMATDD System for Mobile Wireless Broadband Services”, in Proc. Of 16-th inter nationall conference on Computer Communications and Networks (ICCCN),pp.430-35, Aug. 2007.

[2] W.H. Park and S. Bahk, “Resource management policies for fixed relay in cellualar networks”, in Proc. IEEE Globecom’06, Nov. 2006.

[3] R. A. Guerin. “Channel Occupancy Time Distribution in a Cellular Radio System”, IEEE Transactions on Vehicular Technology,36(3):89-99, Jan. 1987.

[4] H.Zeng and C.Zhu, “System-Level Modeling and Performance Evaluation of Multi-hop 802.16j Systems”, IWCMC 2008, Crete Islan, Greece, Aug. 2008.

[5] “IEEE Standard for Local and metropolitan area networks Part 16: Air interface for Broadband Wireless Access Systems”, May 2009.

[6] Yu Chen and IzzatDarwazeh, “End-to-End Delay Performance Analysis in IEEE 802.16j Mobile Multihop Relay (MMR) Networks”, 18th International Conference on Telecommunications, Jun. 2011.


8] Dianati, M. Shen, X and Naik, S, “A new fairness index for radio resource allocation in wireless networks”, Wireless Communications and Networking Conference, 2005 IEEE, Mar. 2005. Li-Chun Wang and Wei-Jun Lin, “Throughput and fairness enhancement for OFDMA broadband wireless access systems using the maximum C/I scheduling”, Vehicular Technology Conference, 2004 VTC2004-Fall 2004 IEEE 60th,Sept. 2004.

[9] Dandan Li and HaoJin , “Relay selection in two-hop IEEE 802.16 Mobile Multi-hop Relay networks”, First International Workshop on Education Technology and Computer Science,Jan. 2009.

[10] Sojeong Ann, Kyung Geun Lee and HyungSeok Kim, “A Path Selection Method in IEEE 802.16j Mobile Multi-hop Relay Networks”, sensor comm ’08, sept. 2008.

[11] Bong Keol Shin, Hyun Sung Kim, Seung Su Kim and JuWook Jang, “A Simple Transmission Scheme to Cancel Co-channel Interference within a Cell in IEEE 802.16j Relay Networks”, 6th International symposium on wireless and pervasive computing, Apr.2011

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