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

fYear

2010

fDate

11-16 April 2010

Firstpage

77

Lastpage

82

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks (ICN), 2010 Ninth International Conference on

Conference_Location

Menuires

Print_ISBN

978-1-4244-6083-0

Type

conf

DOI

10.1109/ICN.2010.21

Filename

5473953