Dynamic Channel Allocation in UTRA-TDD
Authors: Kriengchaiyapruk, Tham
Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
Contact: publications@comnets.rwth-aachen.de
Ph. D. Dissertation Aachen University, ABMT 44, p. 137, ISBN:3-86130-171-7,Wissenschaftsverlag Mainz, 2004.
Publication Date: Jul, 2004
On page(s):137
ISBN: 3-86130-171-7
Abstract
It is known from previous mobile radio network systems (such as (DECT) and (GSM) that (DCA) allows the systems to utilize the bandwidth more efficienly and flexibly than a traditional (FCA) scheme. (UMTS) has two modes of operation, namely (UTRA-TDD) and (UTRA-FDD). (UTRA-TDD) uses (TD-CDMA) technology. The (TDMA) component allows the uplink and downlink capacity to be assigned dynamically. Since the majority of the traffic is expected to come from multimedia sources, the traffic is expected to be downlink-biased. If the allocation of capacity is done intelligently, (UTRA-TDD) is expected to offer higher spectrum efficiency than (UTRA-FDD). This work proposes a number of decentralized (DCA) algorithms in the context of a (TD-CDMA) system by focusing on (UTRA-TDD) as a test platform. The performance of each allocation scheme is rated by traffic theory analysis and stochastic simulations. The capacity of the system and the satisfied user level as a function of traffic load are used to compare the proposed algorithms. (SUC) of each service is used as a benchmark to measure the satisfied user level. Unlike previous generation systems in which speech traffic dominates the system, (UMTS) offers various types of packet data services. Therefore a major focus is also on how each scheme handles with fluctuations in traffic such as various traffic mixtures and geographical traffic hotspots. The simulations are performed with (GOOSE) which has been extended to include (UMTS) traffic sources, (UMTS) propagation models, interference calculation module for every possible type of interference in (UTRA-TDD), and radio resource management modules such as channel allocation modules, standardized (UMTS) power control module, and a scheduler module for packet services. This work enables new insight into the management of radio resources in a multiple service environment.
Author Keywords
DownloadBibtex
@PHDTHESIS{Diss_Kriengchaiyapruk_2004,
AUTHOR = {Kriengchaiyapruk, T.},
TITLE = {Dynamic Channel Allocation in UTRA-TDD},
YEAR = {2004},
MONTH = {Jul},
VOLUME = {44},
PAGES = {137},
PUBLISHER = {Wissenschaftsverlag Mainz},
ADDRESS = {Lehrstuhl für Kommunikationsnetze},
SCHOOL = {Aachen University},
SERIES = {ABMT},
EDITION = {1},
AFFILIATION = {Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ISBN = {3-86130-171-7},
URL = {https://www.comnets.rwth-aachen.de}
}
Signature in CN-Library = {A77}