Title :
A cross-layer Wireless TCP enhancement Scheme in OFDM network
Author :
Jun, Wang ; Xi, Fang ; Quan, Cheng Na ; Min, Jia ; Ping, Zhang
Author_Institution :
Coll. of Telecom. Eng., Beijing Univ. of Posts & Telecommun.
Abstract :
In this paper, we give a cross layer solution to overcome the TCP performance degradation, which is caused by high error bit rate and long disconnection in high-speed wireless environment. Link recovery based on subcarrier reallocation and AMC (adaptive modulation and coding) employed in our scheme can improve the success probability of retransmitted link frame, which will lead great improvement of the TCP performance in high BER environment. The Freeze-TCP technique adopted in our scheme is to conquer the influence of long air disconnection. Simulation shows that the link recovery combined with Freeze-TCP based on subcarrier reallocation and AMC leads great wireless TCP performance enhancement in OFDM network
Keywords :
OFDM modulation; adaptive codes; adaptive modulation; error statistics; modulation coding; radio networks; transport protocols; AMC; BER environment; OFDM network; adaptive modulation and coding; cross-layer wireless TCP enhancement scheme; orthogonal frequency division multiplexing; probability; subcarrier reallocation; Bandwidth; Base stations; Bit error rate; Degradation; Educational institutions; Internet; OFDM; TCPIP; Telecommunications; Wireless application protocol; AMC; OFDM; Wireless TCP;
Conference_Titel :
TENCON 2006. 2006 IEEE Region 10 Conference
Conference_Location :
Hong Kong
Print_ISBN :
1-4244-0548-3
Electronic_ISBN :
1-4244-0549-1
DOI :
10.1109/TENCON.2006.343801
