Title :
Hybrid channel assignment scheme for accommodating voice/data traffic in DS-CDMA cellular systems
Author :
Kim, Jeong Ho ; Kim, Tai Suk ; Kim, Young Woo ; Sung, Dan Keun
Author_Institution :
Adv. Telecommun. Res. Lab., LG Electron. Inc., Kyongki, South Korea
fDate :
9/1/2000 12:00:00 AM
Abstract :
A hybrid channel assignment (HCA) scheme in direct sequence-code division multiple access (DS-CDMA) systems for accommodating integrated voice/data traffic is proposed and the required power levels of voice and data traffic are derived. These levels can be used to maintain the minimum required link qualities of all calls. In the proposed scheme, delay-sensitive voice traffic is accommodated in circuit mode and delay-nonsensitive data traffic is accommodated in packet mode. The capacity region is derived and it can be used for controlling voice call admission and scheduling data packets. The proposed scheme can achieve a high link efficiency with reduced control overhead by statistically multiplexing voice and data traffic
Keywords :
cellular radio; channel allocation; channel capacity; circuit switching; code division multiple access; delays; integrated voice/data communication; multiuser channels; packet switching; spread spectrum communication; telecommunication congestion control; telecommunication traffic; DS-CDMA cellular systems; capacity region; circuit mode; data packets scheduling; delay-nonsensitive data traffic; delay-sensitive voice traffic; direct sequence-code division multiple access; high link efficiency; hybrid channel assignment; integrated voice/data traffic; packet mode; power levels; reduced control overhead; statistical multiplexing; voice call admission control; Circuits; Delay; Facsimile; Job shop scheduling; Multiaccess communication; Quality of service; Radio link; Telecommunication control; Web and internet services; Wireless cellular systems;
Journal_Title :
Vehicular Technology, IEEE Transactions on
