Channel allocation in wireless integrated services networks for low-bit-rate applications
By: Amil Uziel
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1998
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 318
Description: This work addresses issues related to the design and performance of a wireless integrated services network      with emphasis on a tactical framework. We propose an asynchronous transfer mode (ATM)-like protocol      architecture for the mobile network, which is an extension of schemes proposed in the literature. A      medium-access-control (MAC) scheme, based on slot reservation by the remotes, is proposed for the      network. Traffic models for low-bit-rate applications, suitable for low-capacity channels, such as a      multiple-access (macro cell) wireless network, are presented. New bi-directional speech-conversation and      bursty data models are proposed. The issue of scheduling in wireline integrated services networks is thoroughly      addressed and new algorithms are proposed. An analytical scheme to obtain the required (static) capacity for      homogeneous sources based on their Markov-chain characterization is provided. A necessary condition for      optimality of a scheduling algorithm is the balance of cell-loss-probability (CLP) ratios to values approaching 1      from below, on the boundary of the admissible region. The balanced-CLP-ratio (BCLPR) algorithm satisfies      this condition but ignores the deadlines of the cells. The shortest time to extinction (STE) with BCLPR      (STEBR) algorithm, proposed here for the first time, utilizes the earliest-deadline- first concept while satisfying      the necessary condition. A proof is provided to show that the STEBR decisions are optimal at each service slot      given that no information about future traffic arrivals is available. Simulation results indicate that STEBR admits      more sources and yields larger normalized channel throughput (by up to 4%) than STE.
Notes: "June 1998."

Dissertation supervisor(s): Murali Tummala.

Dissertation (Ph.D. in Electrical Engineering) Naval Postgraduate School, June 1998.

Includes bibliographical references (p. 309-316)

Approved for public release; distribution unlimited.

Also available online.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat reader.

Israeli Army author.

dk/dk cc:9116 10/06/98.