Putul, BadrunnessaSalam, Humaira2011-02-282011-02-2820092009-08ID 05310015ID 05210042http://hdl.handle.net/10361/786This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Computer Science and Engineering, 2009.Cataloged from PDF version of thesis report.Includes bibliographical references (page 44).Quality of service(QoS) is very important in mobile communication system & its measures the performance of the system. Different parameters involve in enhancing QoS such as effective handover, adaptive modulation, advance antenna system, antenna diversity, reclay technique, effective channel coding, organized interleaving & frequency hopping, increasig base base stations. We have analyzed theses parameters & proposed effective solution to some of the enforcing problem.44 pagesenBRAC University thesis are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.Computer science and engineeringThesis