Title :
Novel resource allocation schemes in LTE PDCCH
Author :
Xiaoli Chen ; Wei Yang ; Changlong Xu
Author_Institution :
Sch. of Electron. & Inf. Eng., Beijing Jiaotong Univ., Beijing, China
Abstract :
The Physical Downlink Control Channel (PDCCH) is used to signal dynamic resource assignment information in Long Term Evolution (LTE) system. In the presence of numerous active users, their control channel resource location based on PDCCH blind decoding mechanism is determined by the Radio Network Temporary Identifier (RNTI) which is allocated to them by eNodeB when they first access to the cell. This paper presents optimal and efficient resource allocation algorithms based on new RNTI allocation scheme for PDCCH. Three evaluation indexes of the proposed scheduling algorithms are evaluated through Monte-Carlo simulation. Simulation results indicate that system performance (like block probability, CCE utilization and allocation delay time) can be improved significantly with our proposed algorithms.
Keywords :
Long Term Evolution; Monte Carlo methods; channel allocation; decoding; probability; radio networks; resource allocation; scheduling; CCE utilization; LTE PDCCH; LTE system; Monte-Carlo simulation; PDCCH blind decoding mechanism; RNTI allocation scheme; allocation delay time; block probability; control channel resource location; dynamic resource assignment information; eNodeB; efficient resource allocation algorithms; evaluation indexes; long term evolution system; optimal resource allocation algorithms; physical downlink control channel; radio network temporary identifier; resource allocation schemes; scheduling algorithms; system performance; Blind Decoding; Block Probability; LTE; PDCCH; Scheduling Algorithm;
Conference_Titel :
Communication Technology (ICCT), 2012 IEEE 14th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-2100-6
DOI :
10.1109/ICCT.2012.6511201