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A Novel Hybrid CDMA/TDMA Protocol with a Reservation Request Slot for Wireless ATM Networks
Suwon LEE Changhwan OH Aftab AHMAD Jeong-A LEE Kiseon KIM
Publication
IEICE TRANSACTIONS on Communications
Vol.E82-B
No.7
pp.1073-1076 Publication Date: 1999/07/25 Online ISSN:
DOI: Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Radio Communication Keyword: wireless ATM, MAC protocol, packet CDMA,
Full Text: PDF>>
Summary:
A hybrid CDMA/TDMA, a combination of CDMA and TDMA, is proposed as a MAC protocol for wireless ATM networks. TDMA offers the ability to integrate different types of services in a flexible way by the use of multiple slots per frame, while CDMA allows multiple users to transmit simultaneously using their own codes. To reduce the multiple access interference in each slot, the channel access is controlled by an access permission probability or a round robin method. A shared code scheme is adopted to utilize the given code resource efficiently. The results of simulation show that the proposed scheme gives better performance than the JCP algorithm.
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