A multiple access scheme for wireless access to a broadband ATM LAN based on polling and sectored antennas
- 19 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 3, 1047
- https://doi.org/10.1109/pimrc.1995.477308
Abstract
An adaptive polling scheme for multiple access in a broadband wireless LAN is proposed. It is designed to accommodate ATM traffic with a large and variable range of bit rates. The radio architecture is micro-cellular, with switched sectored-beam antennas and a small frequency reuse factor. Features of the multiple access scheme include polling rate depending on a terminal's average bit rate, fixed-length frames divided into segments corresponding to base antenna sectors, add ARQ for error control, combined with randomized sector segment ordering. The steady state performance (cell loss, call blocking and dropping probabilities, waiting time and buffer occupancy) are evaluated by simulation for an open indoor environment, and for handoff, ARQ and simple power control enhancementsKeywords
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