Dynamic Time-Slot Assignment Schemes for TDMA-Based Wireless ATM (Special Issue on Mobile Computing)
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概要
- 論文の詳細を見る
It is indispensable to establish a multi-access protocol and resource management technique that can assure transmission quality and efficiently utilize the radio frequency spectrum for ATM-based wireless access systems. This paper proposes dynamic time-slot assignment schemes for the forward link from a user to a central station (CS): (1) the centralized assignment and release scheme (CAR), and (2) the centralized-assignment and autonomous-release scheme (CAAR). In the proposed schemes, a central station dynamically assigns time-slots based on traffic information obtained by monitoring the input traffic in each radio module (RM). In addition, forward protection is used to prevent false-release of assigned time-slots. Performance evaluations have been carried out by analysis as well as computer simulations. They show that the proposed schemes achieve good performance in delay, link stability, and utilization efficiency of radio resources with an optimized number of forward protection steps.
- 社団法人電子情報通信学会の論文
- 1997-08-25
著者
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Umehira Masahiro
NTT Wireless Systems Laboratories
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Umeuchi Makoto
Ntt Wireless Systems Laboratories
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OHTA Atsushi
NTT Wireless Systems Laboratories
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Umehira Masahiro
Ntt Wireless Communication Systems Laboratories
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