Title :
LMDS in the broadband local loop-alternatives and issues
Author :
Ahmad, Aftab ; Kim, Kiseon
Author_Institution :
Dept. of Inf. & Commun., KwangJu Inst. of Sci. & Technol., South Korea
Abstract :
In this paper we look at two important issues in the design of a cellular structure for a local loop offering broadband services. Firstly, we describe how it is possible to use the local multipoint distribution system (LMDS) for distribution services with and without xDSL. Then, we combine the issue of multiple access and frequency planning into a conglomerate TDMA and CDMA system. We contend that by using TDMA within each cell and CDMA to divide cells not only the limitations of TDMA based systems can be overcome, but also the simplicity of its receiver design is preserved, We also present a cluster based channel allocation mechanism to reduce the interference
Keywords :
broadband networks; channel allocation; code division multiple access; frequency allocation; interference suppression; radio access networks; radiofrequency interference; telecommunication network planning; time division multiple access; CDMA; LMDS; TDMA; broadband local loop; broadband services; cellular structure; cluster based channel allocation mechanism; distribution services; frequency planning; interference; local multipoint distribution system; multiple access; receiver design; xDSL; Channel allocation; Copper; Frequency; Multiaccess communication; Optical fibers; Physical layer; Proposals; Signal design; Telecommunication traffic; Time division multiple access;
Conference_Titel :
Radio and Wireless Conference, 1998. RAWCON 98. 1998 IEEE
Conference_Location :
Colorado Springs, CO
Print_ISBN :
0-7803-4988-1
DOI :
10.1109/RAWCON.1998.709122
