Running TCP over IS-2000

TCP over Second (2.5G) and Third (3G) Generation Wireless Networks

“…Bandwidth Oscillation effects such as spurious retransmissions were identified elsewhere (e.g., [30]) as factors that degrade throughput. There are research studies [52], [54], which show that in some cases Bandwidth Oscillation can be the single most important factor in reducing throughput. In W-CDMA, one to twelve PDUs (RLC frames) constitute one FEC frame, the actual size of which depends on link conditions and bandwidth allocation.…”

Considering spurious timeout in proxy for improving TCP performance in wireless networks

“…The correctness of STD algorithm depends on the timer value T. Basically, T is determined by the average inter-arrival 2 It contains the maximum ACK sequence number that traversed PEP 3 We can not ignore the possibility of packet reordering. Default value is 3.…”

“…It is no longer an uncommon event in wireless networks [1] [2]. Blocking due to high priority traffic, handover or cell reselection and high persistency of link layer ARQ are known as the main reasons of spurious timeout.…”

Cross-layer analysis of wireless TCP/ARQ systems over correlated channels

“…In [5] and [6], the eects of TCP behavior on data transmission over IS-2000 wireless links are studied based on computer simulation. Based on the simulation results, it is shown that the NAK-based non-reliable ARQ recovery scheme is crucial to mitigate the incompatibilities of TCP/IP with lossy radio links and improve the performance of wireless TCP.…”

“…Part of this paper was presented at the IEEE VTC 2004 Spring, Milan, Italy, 2004. networks [5]- [13]. However, it is noted that most of the analytical models are based on the ideal ARQ schemes at the link layer.…”