유무선 혼합망에서 TCP와 Snoop 프로토콜 비교에 관한 연구 (Comparison about TCP and Snoop protocol on wired and wireless integrated network)

서지정보

· 발행기관 : (사)디지털산업정보학회
· 수록지 정보 : (사)디지털산업정보학회 논문지 / 5권 / 2호 / 141 ~ 156페이지
· 저자명 : 김창희

초록

As the TCP is the protocol designed for the wired network that packet loss probability
is very low, because TCP transmitter takes it for granted that the packet loss by the
wireless network characteristics is occurred by the network congestion and lowers the
transmitter’s transmission rate, the performance is degraded. The Snoop Protocol was
designed for the wired network by putting the Snoop agent module on the BS(Base
Station) that connect the wire network to the wireless network to complement the TCP
problem. The Snoop agent cash the packets being transferred to the wireless terminal and
recover the loss by resending locally for the error occurred in the wireless link. The
Snoop agent blocks the unnecessary congestion control by preventing the dupack
(duplicate acknowledgement)for the retransmitted packet from sending to the sender and
hiding the loss in the wireless link from the sender. We evaluated the performance in the
wired/wireless network and in various TCP versions using the TCP designed for the
wired network and the Snoop designed for the wireless network and evaluated the
performance of the wired/wireless hybrid network in the wireless link environment that
the continuous packet loss occur.

영어초록

As the TCP is the protocol designed for the wired network that packet loss probability
is very low, because TCP transmitter takes it for granted that the packet loss by the
wireless network characteristics is occurred by the network congestion and lowers the
transmitter’s transmission rate, the performance is degraded. The Snoop Protocol was
designed for the wired network by putting the Snoop agent module on the BS(Base
Station) that connect the wire network to the wireless network to complement the TCP
problem. The Snoop agent cash the packets being transferred to the wireless terminal and
recover the loss by resending locally for the error occurred in the wireless link. The
Snoop agent blocks the unnecessary congestion control by preventing the dupack
(duplicate acknowledgement)for the retransmitted packet from sending to the sender and
hiding the loss in the wireless link from the sender. We evaluated the performance in the
wired/wireless network and in various TCP versions using the TCP designed for the
wired network and the Snoop designed for the wireless network and evaluated the
performance of the wired/wireless hybrid network in the wireless link environment that
the continuous packet loss occur.

참고자료

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