Autonomous frequency assignment and access for TDMA personal portable radio communications

Published 9 December 2002

J.C.-I. Chuang

DOI10.1109/vetec.1991.140583

Citations10

TL;DR

The author describes a TDMA (time-division multiple-access) portable radio system which has a quasi-fixed frequency-assignment architecture supported by two separate autonomous procedures for frequency assignment and for user access.

Abstract

The author describes a TDMA (time-division multiple-access) portable radio system which has a quasi-fixed frequency-assignment architecture. This architecture is supported by two separate autonomous procedures for frequency assignment and for user access. A simple carrier sensing is performed by each port to determine its own frequency-reuse plan without requiring centralized control. The second autonomous procedure is used by each portable to select the best port transmission at access. The author discusses trade-offs of signal quality and traffic throughput based on these procedures.>

Keywords

Computer ScienceEngineering

AT&T Bell Laboratories Technical Journal800-MHz Attenuation Measured In and Around Suburban Houses

216 Citations1984D.C. Cox, R.R. Murray +1 more

These measurements are needed in refining the requirements for portable-radio communication systems that can accommodate low-power radiotelephone sets and large-scale distributions of the small-scale signal medians are approximately log normal.

Reuse partitioning in cellular systems

182 Citations1983S.W. Halpern

It is shown that reuse partitioning has the potential for increasing system capacity over that which can be achieved with a single reuse factor for a given performance objective and providing a near continuum of equivalent reuse factors in cellular system design.

IEEE Journal on Selected Areas in CommunicationsUniversal Digital Portable Communications: A System Perspective

153 Citations1987D.C. Cox, H. W. Arnold +1 more

An approach to providing universal digital portable communications integrated into telephone networks using a system configuration employing time-division multiple-access radio link architecture and frequency reuse is described.

IRE Transactions on Communications SystemsA Comparison of Some Channel Assignment Strategies in Large-Scale Mobile Communications Systems

101 Citations1972D.C. Cox, D. O. Reudink

It was found that the strategy that chooses a channel to be assigned at a base station so that the distance to the next base station using the same channel is a minimum, performs better than a strategy that minimizes the mean square distance toThe next "in use" base stations on both sides.

IEEE Transactions on Vehicular TechnologyAutonomous adaptive frequency assignment for TDMA portable radio systems

88 Citations1991J.C.-I. Chuang

A high capacity assignment method for cellular mobile telephone systems

88 Citations2003R.W. Nettleton, G.R. Schloemer

A channel assignment scheme for cellular mobile telephone systems in which assignment is based on actual field strength measurements performed dynamically on the functioning system, and is implementable using any of the current or proposed modulation schemes.

DECT-digital European cordless telecommunications

68 Citations2003Heinz Ochsner

It is shown that cordless telecommunication systems differ considerably in service requirements and market structure, with resulting differences in the technical realization of systems.

IEEE Journal on Selected Areas in CommunicationsAdvanced Cordless Telecommunications Service

38 Citations1987A.J. Motley

A proposed system design for the ACTS, which uses 32 kbit/s speech encoding and time-division duplex operation to achieve both-way speech communication on a single 100 KHz-wide radio channel, is proposed.

IEEE Journal on Selected Areas in CommunicationsUser access in portable radio systems in a co-channel interference environment

37 Citations1989R.C. Bernhardt

Operation and performance of a self-organizing frequency assignment method for TDMA portable radio

11 Citations2002J.C.-I. Chuang

It is found that this assignment algorithm is robust against short-term signal fluctuations and can be performed completely autonomously by each radio port in a TDMA (time-division multiple-access) portable radio system.