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Talk · AIP conference proceedings · January 1, 2008

Exploitation of Multi-beam Directional Antennas for a Wireless TDMA∕FDD MAC

Sedat Atmaca, Celal Çeken, Ismail Erturk, Sio-Iong Ao, Mahyar A. Amouzegar, Su‐Shing Chen

Celal Çeken
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Abstract

The effects of the multi‐beam directional antennas on the performance of a new wireless TDMA/FDD MAC system are presented. Directional antennas intrinsically enable development of the SDMA systems and allow transmitting and receiving signals simultaneously at the same time slot. Employing a dynamic slot allocation table at a base station with 4 or 8 sector directional antennas and holding the wireless terminals' location information, a new SDMA/TDMA/FDD frame structure has been developed for wireless communications. The simulation studies realized using OPNET Modeler show that the proposed SDMA/TDMA/FDD system has substantially increased the traditional TDMA/FDD system capacity and provides 1.37 to 4 times better mean delay results when the number of users is increased from 4 to 32 under the same load in the wireless network models.

Wireless Communication Networks ResearchWireless Networks and ProtocolsAdvanced Wireless Network OptimizationSDMATDMAFDD

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