NDLI: Enhanced Slotted ALOHA protocol with collision processing and relay cooperation

Content Provider	IEEE Xplore Digital Library
Author	Missaoui, N. Kammoun, I. Siala, M.
Copyright Year	2012
Description	Author affiliation: LETI Laboratory - ENIS, BPW 3038, Sfax - Tunisia (Missaoui, N.; Kammoun, I.) \|\| Sup'Com, Route de Raoued km 3,5 - 2083, Ariana - Tunisia (Siala, M.)
Abstract	In this paper, we propose a novel approach for the enhancement of slotted ALOHA protocol in general cellular networks, deploying relays to expand their coverage area. In our study, we focus on uplink access and consider a moderate access rate of users to the wireless medium, i.e most of the collisions occur between two packets. When two users transmit simultaneously during the same time slot, a Spatial Successive Interference Cancellation (SSIC) is performed at the destination to separate collided packets. If this separation fails, our idea is that a relay selected from the set of available relays amplifies and forwar ds the signals received from the two users. Then, the destination combines the received signals coming from the interfering users and from the relay. We evaluate the performance of the proposed approa ch in terms of throughput and bit error rate (BER). Simulation results show that our approach achieves significantly better performances in terms of BER and through put than both con ventional slotted ALOHA protocol and collision resolution with interference cancellation.
Starting Page	418
Ending Page	422
File Size	1191951
Page Count	5
File Format	PDF
ISBN	9781467319492
e-ISBN	9781467319508
DOI	10.1109/ICCITechnol.2012.6285838
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-26
Publisher Place	Tunisia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Interference cancellation Protocols Collision resolution Bit error rate Receiving antennas Spatial Successive Interf erence Canceller Throughput Cooperative relaying Slotted ALOHA Relays
Content Type	Text
Resource Type	Article

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