Downlink admission control strategies for CDMA systems in a Manhattan environment

2002 ◽  
Author(s):  
J. Knutsson ◽  
P. Butovitsch ◽  
M. Persson ◽  
R.D. Yates
Keyword(s):  
Admission Control ◽  
Control Strategies ◽  
Cdma Systems

Evaluating QoS in a Multi-Access Wireless Network

2010 ◽  
pp. 1-30
Author(s):  
Ronan Skehill ◽  
William Kent ◽  
Dorel Picovici ◽  
Michael Barry ◽  
Sean McGrath
Keyword(s):  
Quality Of Service ◽  
Admission Control ◽  
Control Strategies ◽  
End User ◽  
Ieee 802.11B ◽  
Test Platform ◽  
Tightly Coupled ◽  
Multi Access ◽  
The Impact

This chapter introduces quality of service in multi-access wireless networks. Specifically it demonstrates how QoS is implemented in IEEE 802.11 and UMTS. The chapter explains how these complementary technologies, when coupled together, provide a network that is greater than its individual parts. Combining these networks brings new network management challenges. To this end, the impact of joint admission control strategies on quality of service is evaluated. The evaluation is performed on an advanced test platform that replicates an integrated Release 4 UMTS network and standard IEEE 802.11b network. The results show that when UMTS and WLAN are tightly coupled, the end user enjoys a higher level of quality of service.

EFFECTIVE ADMISSION CONTROL FOR POWER-CONTROLLED DS-CDMA SYSTEMS

2004 ◽  
Vol 13 (02) ◽  
pp. 325-339
Author(s):  
SEUNG HOON SHIN ◽  
KYUNG SUP KWAK
Keyword(s):  
Control Problem ◽  
Admission Control ◽  
Information Exchange ◽  
Call Admission Control ◽  
Base Stations ◽  
Constrained System ◽  
Call Admission ◽  
Cdma Systems ◽  
Improved Performance

Effective call admission control (CAC) is one of the most important techniques to provide the desired quality of service (QoS) in wireless networks. This paper investigates the call admission control problem for the power-controlled CDMA systems. With a macroscopic description for the power control problem, the call admission control for the power-constrained system is analyzed and an admissibility condition is derived. Based on the derived condition, we propose two CAC algorithms. One is an interactive method that provides the optimum performance, but requires some information exchange between base stations. The other can be implemented in a distributed manner and provide a reasonable performance. Through simulations, we show that the proposed algorithms provide an improved performance.

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