Performance of a TD-SCDMA cellular system in the presence of circuit and packet switched services
ABSTRACT We analyze the performance of a time-division synchronous code-division multiple access (TD-SCDMA) system. In particular, we investigate the impact of packet switched applications (for instance Web browsing sessions) on the overall performance of the network. Here, we quantify the degradation of the voice users' quality in the presence of packet data services and vice versa. Finally, we investigate the impact of some power control parameters on the overall quality and we show that these parameters should be carefully chosen to balance the quality of voice and data users.
- SourceAvailable from: Alessandro Bazzi
- "Many of these aspects are often neglected or considered in simplistic ways in commonly used network simulators (such as, for instance, Opnet  or ns-2 ); moreover, the simulation of integrated interworking networks obviously requires the adoption of interworking network simulators, thus preventing from the adoption of commercially available tools. These considerations motivated the development of a dedicated simulation tool which is the integration of UMTS and WLAN simulators we previously developed and utilized for our research activities (e.g., , ). "
Conference Paper: UMTS and WLAN integration: architectural solution and performance[Show abstract] [Hide abstract]
ABSTRACT: In this paper the issue of networks interworking is faced with reference to UMTS cellular networks and IEEE 802.11 wireless local area networks. A feasible architectural solution of the integrated network is given and the possibility to serve by means of the WLAN technology also those voice calls that would be blocked by UMTS, in case of resource saturation, is investigated. The performance level provided by the integrated network in a realistic scenario is here assessed considering both IEEE 802.11a and the forthcoming IEEE 802.11e WLAN technologies for possible integration with UMTSPersonal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on; 10/2005
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ABSTRACT: CMMB (China Multimedia Mobile Broadcast) is the Chinese mobile broadcast standard and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) is the Chinese 3G standard. This paper proposes a novel algorithm for improving the reception quality of CMMB by utilizing TD-SCDMA networks. The proposed algorithm is based on the proposed novel converged network architecture by combining CMMB and TD-SCDMA networks through a node called Management Center. After detail description of the proposed network architecture and the proposed algorithm, the performances of the algorithm are analyzed and the results have shown the feasibility of the architecture and the algorithm. As conclusion, the issues to be considered and the future work are briefly presented.
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ABSTRACT: The investigation of both link and network level aspects is fundamental when a thorough analysis of mobile radio systems is required. The conventional approach, based on a complete separation between the two levels, adopted in the past for the performance evaluation of second generation systems, is not enough accurate for third generation ones, characterized by the presence of both voice and data services as well as circuit and packet switched applications. Here we describe a methodology on how to interface link and network level tools and finally show an example of applicationWireless Communications and Networking Conference, 2006. WCNC 2006. IEEE; 05/2006