Performance of dynamic timeslot-code assignment strategies in UTRA-TDD

Abstract

This paper presents various dynamic Timeslot-CodeAssignment (TCA) strategies, using heuristic rules or online measured information, suitable to support real-time multimedia services in UTRA-TDD. In the measurement-aided TCA scheme employing minimum instantaneous power (MIP) criterion, the base station assigns resources to an active burst in the timeslot where the corresponding mobile terminal will transmit minimum power to meet a target signal to interference and noise ratio (SINR). A selfcorrective (SC) strategy used with the MIP scheme is introduced to adapt to interference variations during burst transmission. The satisfied user criterion is used as a metric to assess the system capacity. Simulations using OPNET for both speech and streaming video services are presented. Simulation results show that the SC-MIP outperforms the other simple TCA schemes.

Radio resource management for downlink multimedia services in TDMA/CDMA interference-limited cellular networks

“…First, we will review simple DCA algorithms proposed in [17]. We will then consider the measurement-based Minimum Instantaneous Power (MIP) algorithm proposed for a distributed structure, which can offer much better performance than simple DCA algorithms.…”

“…However, the proposed RRM structure and strategies are applicable to other 3 G and beyond access technologies, such as OFDM [16]. We first propose a distributed strategy termed minimum instantaneous power (MIP) [17]. In MIP, the base station assigns resources to an active burst on the timeslot featuring minimum transmission power requirement that achieves a target SINR level.…”