Abstract
This paper presents the application of the multiple antenna schemes beamforming (BF) and Multiple Input Multiple Output (MIMO) in the broadband wireless access system WiMAX. The evaluation considers the competing performance demands on link robustness and peak data rate. Configurations for both uplink and downlink are discussed. We conclude that future wireless communications will rely on diverse and adaptive multiple antenna schemes to meet their requirements, in particular in the presence of strong co-channel interference.
Highlights
The current standard IEEE 802.16e [1], base of the well-known WiMAX Mobile System Profile [2], provides Orthogonal Frequency Division Multiple Access (OFDMA) allowing efficient resource sharing and coping with multipath propagation in dense urban environments
The relative coverage and throughput improvements depending on transmission mode, antenna configuration and channel model will be given for some exemplary scenarios
WiMAX allows for the multiple antenna solutions beamforming and Multiple Input Multiple Output (MIMO) which can be exploited to improve radio links
Summary
The current standard IEEE 802.16e [1], base of the well-known WiMAX Mobile System Profile [2], provides Orthogonal Frequency Division Multiple Access (OFDMA) allowing efficient resource sharing and coping with multipath propagation in dense urban environments. OFDMA is a dominant candidate for future 4G wireless communication systems. In cellular networks without explicit precaution co-channel interference causes severe performance degradation in terms of coverage and data throughput, in systems with low frequency reuse factor. Performance evaluation on link level and on system level. The relative coverage and throughput improvements depending on transmission mode, antenna configuration and channel model will be given for some exemplary scenarios.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Communications - Scientific letters of the University of Zilina
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
