An Efficient Spectrum Sharing and Interference Reduction for Cellular Network
S.Tamilselvan1, S. Savitha2, D. Prabakar3
1S.Tamilselvan, the Department Electronics and Communication Engineering from the Pondicherry Engineering College, Pondicherry, India.
2S. Savitha, the Department of Electronics and Communication Engineering from Pondicherry Engineering College Affiliated to Pondicherry University, Pondicherry, India.
3D. Prabakar,  the Department of Electronics and Communication Engineering from Arunai Engineering College Affiliated to Anna University, India.
Manuscript received on November 28, 2013. | Revised Manuscript received on December 12, 2013. | Manuscript published on December 30, 2013. | PP: 204-210 | Volume-3, Issue-2, December 2013. | Retrieval Number:  B2431123213/2013©BEIESP

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Abstract: To utilize spectrum resource more efficiently in a cellular network is very difficult. So to improve the resources, adhoc device to device communication was introduced. Interference management is a major component in designing these spectrum sharing schemes and it is critical that the licensed users maintain their QoS. A distributed dynamic spectrum protocol is proposed in which device to device users can communicate directly with each other and access the spectrum more efficiently. Network information is distributed by route discovery packet in a random access manner to establish the single hop or multihop link between D2D users. The discovery packet which contains network information will decrease the failure rate of the route discovery and also reduces the number of transmissions to find the route. The Performance metrics such as the route discovery failure probability and the number of transmission necessary to discover a route to the destination are to be analyzed. Finally using the found route, the simulation result shows that two D2D users can communicate with a low probability of outage and also reduces harmful interference to the macro users. The proposed protocol can be significantly achieved power saving using D2D route rather than connecting to the cellular base station. So spectrum resources are shared more efficiently between the macro user and device to device user.
Keywords: Device-to-device, Spectrum sharing, Power control, Interference management, Route discovery.