Admission Control for Differentiated Services in Future Generation CDMA Networks

• Main Authors: TAN, Hwee-Pink, Núñez-Queija, Rudesindo, GABOR, Adriana F., BOXMA, Onno J.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2009
• Subjects: Future generation wireless systems; CDMA; Differentiated admission control; Time-scale decomposition; Computer and Systems Architecture; Software Engineering
• Online Access: https://ink.library.smu.edu.sg/sis_research/2951; https://ink.library.smu.edu.sg/context/sis_research/article/3951/viewcontent/perf_eval_2008.pdf
• Institution: Singapore Management University

Future Generation CDMA wireless systems, e.g., 3G, can simultaneously accommodate flow transmissions of users with widely heterogeneous applications. As radio resources are limited, we propose an admission control rule that protects users with stringent transmission bit-rate requirements (“streaming traffic”) while offering sufficient capacity over longer time intervals to delay-tolerant users (“elastic traffic”). While our strategy may not satisfy classical notions of fairness, we aim to reduce congestion and increase overall throughput of elastic users. Using time-scale decomposition, we develop approximations to evaluate the performance of our differentiated admission control strategy to support integrated services with transmission bit-rate requirements in a realistic downlink transmission scenario for a single radio cell.