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Item Information   Holdings       More by this author     Chandrasekaran, Raj     Subjects     Wireless communication systems     Code division multiple access.     Mobile communication systems     Cellular telephone systems     System design     Computer simulation     MSE Project.     Browse Catalog     by author:      Chandrasekaran, Raj       by title:      Evolution of terrest...         MARC Display

Evolution of terrestrial wireless cellular standards from 2G to 3G and coexistence between W-CDMA and CDMA2000 in the 3G spectrum / by Raj Chandrasekaran. by Chandrasekaran, Raj Subjects Wireless communication systems   Code division multiple access.   Mobile communication systems   Cellular telephone systems   System design   Computer simulation   MSE Project. Description:  158 leaves : ill. ; 29 cm. Contents:  Advisor: Dr. Edward Chandler. Committee members: John Starr, Dr. Steven Reyer. Introduction -- Description of W-CDMA -- Description of CDMA2000 -- Interoperability between W-CDMA and CDMA2000 -- System capacity analysis -- Discussion of results -- Economic impact -- Future research work -- Conclusion -- References -- Appendix A) Brief description of 2G GSM, 2G IS-136 and the evolution of 2G GSM and 2G IS-136 to the intermediate 2.5G B) Code division multiple access (CDMA) C) Power control D) Description of channelization and complex scrambling E) Modulation F) Decription of multi-carrier CDMA (MC-CDMA) G) Description of WCDMASim simulation package H) MATLAB setup for simulation CDMA interferers in the uplink I) Q-fuction table. The main objective of the Master of Science in Engineering (MSE) capstone project was to determine the feasibility of achieving signal interoperability between the two principal third generation (3G) terrestrial wireless cellular systems, namely Wideband-Code Division Multiple Access (W-CDMA) and Code Division Multiple Access2000 (CDMA2000). In order to study the feasibility of achieving signal interoperability between the two 3G systems, the evolutionary path developed for the migration of second generation (2G) Global System for Mobile Communications (GSM) and 2G IS-136 to the intermediate 2.5G system was studied so that the concepts that were used to allow the two dissimilar 2G systems to interoperate with each other, resulting in a defined intermediate 2.5G system, could potentially aid in the efforts to have the two dissimilar 3G systems interoperate with each other. It was determined that, analogous to the 2G systems, there is no signal or network interoperability between W-CDMA and CDMA2000, and it would be difficult to achieve interoperability between the two 3G systems without forcing one system to adopt the characteristics of the other system. However, unlike the 2G case in which the 2G GSM system was clearly the superior system compared to the 2G IS-136 system and therefore it was justifiable to force 2G IS-136 to migrate towards 2G GSM, neither 3G system displays marked superiority over the other. Therefore, it would be difficult to conclude which 3G system should remain stationary and which should adopt the signaling and networking protocols of the other. Consequently, forcible modifications to either one of the 3G systems is not likely and interoperability between the two systems is not feasible. However, due to the inherent nature of CDMA, which is an interference-limited system, whereby the introduction of each active mobile user increases the overall level of interference at a particular cell in a gradual manner, it is feasible for W-CDMA and CDMA2000 to coexist with each other albeit with predictable degredation in performance. This paper shows that signal interoperability between W-CDMA and CDMA2000 can coexist and quantified the degradation in performance both theoretically as well as using Matrix Laboratory (MATLAB) based simulations.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .C43 2005 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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