TY - JOUR
T1 - Jointly optimal power and admission control for delay sensitive traffic in CDMA networks with LMMSE receivers
AU - Comaniciu, Cristina
AU - Poor, H. Vincent
PY - 2003/8
Y1 - 2003/8
N2 - In this paper, quality-of-service (QoS) guarantees for multiclass code division multiple access networks are provided by means of cross-layer optimization across the physical and network layers. At the physical layer, the QoS requirements are specified in terms of a target signal-to-interference ratio (SIR) requirement, and optimal target powers are dynamically adjusted according to the current number of users in the system. At the network layer, the QoS requirements are the blocking probabilities and the call connection delays. The network layer guarantees that both physical layer and network layer QoS are met by employing admission control. An optimal admission control policy is proposed based on a semi-Markov decision process formulation. The tradeoff between blocking and delay is discussed for various buffer configurations. The advantage of advanced signal processing receivers is established using a comparative capacity analysis and simulation with the classical scenario in which the system uses matched filter receivers.
AB - In this paper, quality-of-service (QoS) guarantees for multiclass code division multiple access networks are provided by means of cross-layer optimization across the physical and network layers. At the physical layer, the QoS requirements are specified in terms of a target signal-to-interference ratio (SIR) requirement, and optimal target powers are dynamically adjusted according to the current number of users in the system. At the network layer, the QoS requirements are the blocking probabilities and the call connection delays. The network layer guarantees that both physical layer and network layer QoS are met by employing admission control. An optimal admission control policy is proposed based on a semi-Markov decision process formulation. The tradeoff between blocking and delay is discussed for various buffer configurations. The advantage of advanced signal processing receivers is established using a comparative capacity analysis and simulation with the classical scenario in which the system uses matched filter receivers.
KW - Admission control
KW - CDMA
KW - Capacity
KW - Cross-layer
KW - Multiuser detection
KW - Power control
KW - QoS
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U2 - 10.1109/TSP.2003.814467
DO - 10.1109/TSP.2003.814467
M3 - Article
AN - SCOPUS:0043166362
SN - 1053-587X
VL - 51
SP - 2031
EP - 2042
JO - IEEE Transactions on Signal Processing
JF - IEEE Transactions on Signal Processing
IS - 8
ER -