TY - GEN
T1 - Delay-aware call admission control algorithm in 3GPP LTE system
AU - Bae, Sueng Jae
AU - Choi, Bum Gon
AU - Chung, Min Young
AU - Lee, Jin Ju
AU - Kwon, Sungoh
PY - 2009
Y1 - 2009
N2 - Long Term Evolution (LTE) has being standardized by the 3rd Generation Partnership Project (3GPP) as the evolution of WCDMA. Different from the conventional mobile communication technologies that deliver voice traffic through circuit switched networks, in LTE, all kinds of traffic are transferred through packet switched networks based on Internet Protocol (IP). In order to provide Quality of Service (QoS) in packet switched networks, Radio Resource Management (RRM) is very important. Especially, Call Admission Control (CAC), which is a part of RRM, plays an important role in RRM because it can prevent network congestion and guarantee certain level of QoS for on-going calls by accepting or rejecting service requests. In this paper, we propose delay-aware CAC algorithm in order to provide QoS for various kinds of services in LTE system. Delay-aware CAC algorithm utilizes statistical datas for packet delay and PRB utilization in order to guarantee packet delay requirements for on-going calls. In order to evaluate performance of delay-aware CAC algorithm, we perform simulations under various environments. The simulation results show that the delayaware CAC algorithm can satisfy packet delay requirements for various service types defined in LTE specification.
AB - Long Term Evolution (LTE) has being standardized by the 3rd Generation Partnership Project (3GPP) as the evolution of WCDMA. Different from the conventional mobile communication technologies that deliver voice traffic through circuit switched networks, in LTE, all kinds of traffic are transferred through packet switched networks based on Internet Protocol (IP). In order to provide Quality of Service (QoS) in packet switched networks, Radio Resource Management (RRM) is very important. Especially, Call Admission Control (CAC), which is a part of RRM, plays an important role in RRM because it can prevent network congestion and guarantee certain level of QoS for on-going calls by accepting or rejecting service requests. In this paper, we propose delay-aware CAC algorithm in order to provide QoS for various kinds of services in LTE system. Delay-aware CAC algorithm utilizes statistical datas for packet delay and PRB utilization in order to guarantee packet delay requirements for on-going calls. In order to evaluate performance of delay-aware CAC algorithm, we perform simulations under various environments. The simulation results show that the delayaware CAC algorithm can satisfy packet delay requirements for various service types defined in LTE specification.
UR - https://www.scopus.com/pages/publications/77951145159
U2 - 10.1109/TENCON.2009.5396157
DO - 10.1109/TENCON.2009.5396157
M3 - Conference contribution
AN - SCOPUS:77951145159
SN - 9781424445479
T3 - IEEE Region 10 Annual International Conference, Proceedings/TENCON
BT - TENCON 2009 - 2009 IEEE Region 10 Conference
T2 - 2009 IEEE Region 10 Conference, TENCON 2009
Y2 - 23 November 2009 through 26 November 2009
ER -