Title :
Adaptive code rate for orthogonal code hopping multiplexing (OCHM) in synchronous downlink
Author :
Kwon, Jae Kyun ; Park, Suwon ; Sung, Dan Keun ; Lee, Heesoo
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
We proposed an Orthogonal Code Hopping Multiplexing (OCHM) scheme as a new statistical multiplexing scheme in synchronous downlink. OCHM enables a large number of users to share a limited number of code channels through statistical multiplexing. In this paper, we obtain the optimal code rate in several traffic load environments by simulation and summarize the appropriate traffic load region for each code rate as the optimal code rate. An adaptive code rate control scheme is proposed and the base station adaptively changes the code rate according to traffic environments in order to save power.
Keywords :
adaptive codes; multiplexing; radio links; telecommunication traffic; OCHM; adaptive code rate; base station; code channels; optimal code rate; orthogonal code hopping multiplexing; statistical multiplexing scheme; synchronous downlink; traffic load environments; Adaptive coding; Automatic control; Code division multiplexing; Collision mitigation; Degradation; Downlink; Error analysis; Information rates; OFDM; Telecommunication traffic;
Conference_Titel :
Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-7700-1
DOI :
10.1109/WCNC.2003.1200483
