Admission of Multimedia Traffic for Third Generation CDMA Network
نویسندگان
چکیده
Absrrucr-As CDMA is to be used for the third generation wireless network to provide integrated services, it is important to study how the Quality of Service, such as packet loss and delay, should be guaranteed. To accomplish this, we develop a cell-wise model in which user’s resource consumption is characterized, and the constraint between system bandwidth and resource consumptions of users is given. This model incorporates important factors that affect user’s Quality of Service, including the sggregation of user traffic, user power constraint, path loss and interference. Based on this model, we develop an admission control procedure. We further study transmission schemes using one channel and two channels. Numerical results show the two-channel scheme can have more users admitted, especially under heavy interference from other cells and when users’ traffic is bursty.
منابع مشابه
Admission Control of Multimedia Traffic for Third Generation CDMA Network
As CDMA is to be used for the third generation wireless network to provide integrated services, it is important to study how the Quality of Service, such as packet loss and delay, should be guaranteed. To accomplish this, we develop a cell-wise model in which user’s resource consumption is characterized, and the constraint between system bandwidth and resource consumptions of users is given. Th...
متن کاملResource Allocation for Wireless CDMA Systems Supporting Heterogeneous Multimedia Traffic
We investigate the resource allocation problem for future third-generation (3G) wireless CDMA cellular networks supporting heterogeneous multimedia applications. More specifically, we demonstrate that the network resources consumed by an individual user in a directsequence spread-spectrum CDMA network can be taken as the product of the allocated source coding rate, , and the energy per bit norm...
متن کاملAn FDD Wideband CDMA MAC Protocol for Wireless Multimedia Networks
A medium access control (MAC) protocol is developed for wireless multimedia networks based on frequency division duplex (FDD) wideband code division multiple access (CDMA). In this protocol, the received power levels of simultaneously transmitting users are controlled by a minimum-power allocation algorithm such that the heterogeneous bit error rates (BERs) of multimedia traffic are guaranteed....
متن کاملDual Degree Dissertation Efficient Media Access Control (MAC) Layer Design for Multi-Class CDMA Networks
Heterogeneity of telecommunications platform and customization of multimedia services are two predominant features of the third generation wireless cellular networks. In such a scenario, where the access requirements of multimedia customers and network conditions change from session to session, the existence of fair and efficient algorithms for admission control and scheduling which exploit the...
متن کاملModeling and Analysis of Code-based Call Admission Control for QoS Management in W-CDMA Systems
Efficient resource allocation for multi-class traffic with QoS guarantee is an important issue in integrated multimedia mobile communication networks. In the third generation mobile communication systems, the Orthogonal Variable Spreading Factor (OVSF) codes are used as spreading codes. The use of OVSF codes allows the spreading factors to be changed for variable bit-rate requirements. In this ...
متن کامل