Naslov
The Effect of TCP Variants on the Coexistence of MMORPG and Best-Effort Traffic

Autori
Saldana, Jose ; Sužnjević, Mirko ; Sequeira, Luis ; Fernandez-Navajas, Julian ; Matijašević, Maja ; Ruiz-Mas, Jose

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 21st International Conference on Computer Communications and Networks (ICCCN) 2012 (5 str.) / - : IEEE press, 2012, 1-5

ISBN
978-1-4673-1543-2

Skup
The 21st International Conference on Computer Communications and Networks (ICCCN) 2012

Mjesto i datum
München, Njemačka, 30.07.2012. - 02.08.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
online gaming; MMORPG; TCP variants; buffer size; queuing delay

Sažetak
We study TCP flows coexistence between Massive Multiplayer Online Role Playing Games (MMORPGs) and other TCP applications, by taking World of Warcraft (WoW) and a file transfer application based on File Transfer Protocol (FTP) as an example. Our focus is on the effects of the sender buffer size and FTP cross-traffic on the queuing delay experienced by the (MMORPG) game traffic. A network scenario corresponding to a real life situation in an ADSL access network has been simulated by using NS2. Three TCP variants, namely TCP SACK, TCP New Reno, and TCP Vegas, have been considered for cross-traffic. The results show that TCP Vegas is able to maintain a constant rate while competing with the game traffic, since it prevents packet loss and high queuing delays by not increasing the sender window size. TCP SACK and TCP New Reno, on the other hand, tend to continuously increase the sender window size, thus potentially allowing higher packet loss and causing undesired delays for the game traffic. In terms of buffer size, we have established that smaller buffers are better for MMORPG applications, while larger buffers contribute to a higher overall delay.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

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