Title :
Performance of dynamic timeslot-code assignment strategies in UTRA-TDD
Author :
Elshabrawy, Tallal ; Le-Ngoc, Tho
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
This paper presents various dynamic timeslot-code assignment (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 self-corrective (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.
Keywords :
3G mobile communication; cellular radio; code division multiple access; multimedia communication; time division multiple access; video streaming; voice communication; OPNET simulations; SC-MIP; UMTS terrestrial radio access time-division duplex mode; UTRA-TDD; active burst; base station resources; burst transmission interference variations; dynamic timeslot-code assignment strategies; heuristic rules; measurement-aided TCA scheme; minimum instantaneous power criterion; mobile terminal; online measured information; real-time multimedia services; satisfied user criterion; self-corrective strategy; speech services; streaming video services; system capacity metric; target signal to interference and noise ratio; universal mobile telecommunications system; 3G mobile communication; Active noise reduction; Base stations; Interference; Multiaccess communication; Power measurement; Resource management; Signal to noise ratio; Speech; Streaming media;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1405091
