Title :
IPTV Capacity Analysis Using DCCP over IEEE 802.11n
Author :
Saleh, Saleh ; Shah, Zawar ; Baig, Adeel
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci. (SEECS), Nat. Univ. of Sci. & Technol. (NUST), Islamabad, Pakistan
Abstract :
Internet Protocol Television (IPTV) has gained an enormous growth rate by revolutionizing personal entertainment. High data rates with increased coverage radius of IEEE 802.11n Wireless Local Area Networks (WLANs) motivate the concept of wireless IPTV. Streaming of Television contents over highly pervasive wireless environment with satisfactory Quality of Service (QoS) is a challenging task. Focusing on wireless IPTV, our work deals with the capacity evaluation of IPTV users over IEEE 802.11n. We first present an upper capacity limit for supporting maximum number of users over IEEE 802.11n. We then propose that 4-times packet size is the optimal frame aggregation size for IPTV which maximizes users capacity and QoS. Finally, we suggest the use of Datagram Congestion Control Protocol (DCCP) at transport layer for IPTV. We show that DCCP capacity for IPTV increases upto 35% by reducing packet losses at Access Point (AP), compared to User Datagram Protocol (UDP). We further evaluate fairness of IPTV traffic in the presence of Transmission Control Protocol (TCP) traffic in the network. Our study concludes that IPTV using DCCP over IEEE 802.11n not only provides increased user´s capacity but also co-exists fairly with TCP traffic.
Keywords :
IPTV; channel capacity; quality of service; telecommunication congestion control; transport protocols; wireless LAN; AP; DCCP; IEEE 802.11n wireless local area networks; Internet protocol television; QoS; TCP traffic; UDP; WLAN; access point; capacity evaluation; datagram congestion control protocol; frame aggregation size; quality of service; television contents streaming; transmission control protocol traffic; transport layer; user datagram protocol; wireless IPTV; Delays; HDTV; IEEE 802.11n Standard; IPTV; Packet loss; Wireless communication;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th
Conference_Location :
Las Vegas, NV
DOI :
10.1109/VTCFall.2013.6692252