Title :
Impact of Control Channel Limitations on the LTE VoIP Capacity
Author :
Puttonen, Jani ; Puupponen, Hannu-Heikki ; Aho, Kari ; Henttonen, Tero ; Moisio, Martti
Author_Institution :
Magister Solutions Ltd., Jyvaskyla, Finland
Abstract :
In this paper, we present a fully dynamic simulative analysis of the Downlink (DL) Voice-over-IP (VoIP) performance in 3G Long Term Evolution (LTE) with both Uplink (UL) and DL control channel constraints. In UL the Physical Uplink Control Channel (PUCCH) capacity affects the Channel Quality Indicator (CQI) resolution and in DL the Physical Downlink Control Channel (PDCCH) capacity has an impact to the amount of multiplexed users per Transmission Time Interval (TTI). The results indicate that with realistic control channel assumptions, semi-persistent packet scheduling outperforms dynamic packet scheduling.
Keywords :
Internet telephony; packet radio networks; radio links; 3G long term evolution; LTE VoIP capacity; channel quality indicator resolution; control channel limitation; downlink voice-over-IP performance; dynamic packet scheduling; dynamic simulative analysis; physical downlink control channel capacity; physical uplink control channel capacity; realistic control channel; semi-persistent packet scheduling; transmission time interval; Channel capacity; Delay; Downlink; Dynamic scheduling; Frequency domain analysis; Internet telephony; Long Term Evolution; Optimal scheduling; Scheduling algorithm; Traffic control; CQI; LTE; PDCCH; VoIP; capacity; semi-persistent scheduling;
Conference_Titel :
Networks (ICN), 2010 Ninth International Conference on
Conference_Location :
Menuires
Print_ISBN :
978-1-4244-6083-0
DOI :
10.1109/ICN.2010.21
