Cochannel interference avoidance MAC in wireless cellular networks

Severe cochannel interference in wireless cellular networks significantly affects users at cell edges. We propose a cost-effective cochannel interference avoidance (CIA) medium access control (MAC) scheme to improve network performance. For CIA-MAC, base stations judged as severe interferers transmi...

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Bibliographic Details
Published in:IEEE transactions on communications 2009-11, Vol.57 (11), p.3897-3405
Main Authors: Guowang Miao, Ye Li, Himayat, N., Talwar, S.
Format: Article
Language:English
Subjects:
Access methods and protocols, osi model
Applied sciences
Avoidance
Base stations
Broadcasting
Cellular
Cellular communication
Channels
Cochannel interference
cross layer
Cross layer design
Detection, estimation, filtering, equalization, prediction
distributed
Downlink
Equipments and installations
Exact sciences and technology
Frequency
frequency reuse
Information, signal and communications theory
Interchannel interference
Interference avoidance
Land mobile radio cellular systems
Local area networks
Media Access Protocol
medium access control
Mobile communication systems
Mobile radiocommunication systems
Networks
Radiocommunications
Radiofrequency interference
Signal and communications theory
Signal, noise
Stations
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Transmission and modulation (techniques and equipments)
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Description
Summary:Severe cochannel interference in wireless cellular networks significantly affects users at cell edges. We propose a cost-effective cochannel interference avoidance (CIA) medium access control (MAC) scheme to improve network performance. For CIA-MAC, base stations judged as severe interferers transmit randomly and the transmission is controlled by wireless channel states to optimize the overall network performance while maintaining proportional fairness among users. Conditions for triggering CIA-MAC are derived and two simple trigger mechanisms are obtained. The CIA-MAC scheme requires low signaling overhead and only minor changes to the existing mobile systems. Simulation results show that the proposed scheme, CIAMAC, significantly outperforms traditional approaches through the avoidance of severe cochannel interference as well as the exploitation of multiuser diversity through cross-layer design.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2009.11.080281