Research - TCP/IP over Air Links - Link Layer Approaches

Literature Scanning - A List, Temporarily  (ls -alt)

• M. Liu, M.T Liu,; M. E. Muller, J. He. A MAC protocol supporting TCP in DS-CDMA PCNs. Proc. IEEE IPCCC'2000, 8-14, 2000

... The protocol is based on Preamble Signaling Access witch uses a Slot-ted- ALOHA-like scheme. Markovian chain models are used to analyze the performance of this protocol. ...

• J. W. K. Wong, V. C. M. Leung. Improving end-to-end performance of TCP using link-layer retransmissions over mobile internetworks. Proc. IEEE ICC'99, 324-328, 1999

... We investigate, through computer simulations, the end-to-end effects of link-layer retransmissions on TCP Reno over a low-data-rate wireless link. Our results show that, by using the more effective selective-reject ARQ at the link layer, the problem of competitive retransmissions between TCP and link layer is much less serious than previously reported. ...

• A. Chockalingam, M. Zorzi, V. Tralli. Wireless TCP performance with link layer FEC/ARQ. Proc. IEEE ICC'99, 1212-1216, 1999

In this paper, we investigate the performance of TCP Tahoe and NewReno on wireless links with a FEC/ARQ protocol at the link layer. The effect of link layer (LL) parameters like the LL packet size, number of LL transmission attempts, and FEC code rate on the TCP throughput is evaluated. It is shown that the retransmissions at the link layer must persist long enough to out-last the average bad state duration of the Rayleigh fading process in order to achieve performance better than TCP without an ARQ at the link layer. It is further shown that with a suitable link layer in place, TCP Tahoe offers as high a throughput as offered by other enhanced versions like NewReno in the considered wireless environment.

• G. Xylomenos, G. C. Polyzos. Link layer support for quality of service on wireless Internet links. IEEE Personal Comm. Magazine, 6(5):52-60, 1999

... We present a simulation study of various link layer enhancements, and their impact on TCP and UDP performance. Our results show that different approaches are preferable for each type of application. We thus propose a multiservice link layer approach that supports multiple link layer mechanisms over a single link. Our scheme is transport-protocol- independent and customizable for the underlying wireless link technology. ...

• N. M. Chaskar, T. V. Lakshman, U. Madhow. TCP over wireless with link level error control: analysis and design methodology. IEEE Trans. on Networking, 7(5):605-615, 1999

... In order to prevent throughput degradation, it is necessary to "hide" the losses and the time variations of the wireless link from TCP. ... This paper presents an approximate analysis, validated by computer simulations, for TCP performance over wireless links. ... The specific case of a Rayleigh-faded wireless link and automatic repeat request-based link-layer recovery is considered for the purpose of illustration. ...

• D. A. Eckhardt, P. Steenkiste. Improving wireless LAN performance via adaptive local error control. Proc. IEEE 6th ICNP'98, 327-338, 1998

... We argue and demonstrate that protocol-independent link-level local error control can achieve high communication efficiency even in a highly variable error environment, that adaptation is important to achieve this efficiency, and that inter-layer coexistence is achievable. ...

• G. M. Butler, K. H. Grace. Adapting wireless links to support standard network protocols. Proc. IEEE 7th ICCCN'98, 742-749, 1998

... This paper explores how the wireless problem domain can be represented as a design space of a few independent variables, namely: reliability, latency, and bandwidth. ... A simulation is presented which demonstrates that by matching the operating point in the wireless problem domain design space to the expectations of the data, much better performance is realized.

• A. Zahedi, K. Pahlavan. Voice and data integration on TCP/IP wireless networks. Proc. IEEE 8th PMIRC'97, 678-682, 1997

The Capacity of a Carrier Sense Multiple Access (CSMA) wireless LAN with voice and data services using TCP/`IP protocol is analyzed to obtain a lower bound for the capacity of the 802.11 wireless networks with voice and data services.

• AIRMAIL@AT&T
 
• Ender Ayanoglu, Sanjoy Paul, Thomas F. LaPorta, Krishan K. Sabnani, Richard D. Gitlin. AIRMAIL: A link-layer protocol for wireless network. Wireless Network, 1(1):47-60, 1995

• TULIP@UCSC
 
• C. Parsa, J. J. Garcia-Luna-Aceves. Improving TCP performance over wireless network at the link layer. ACM Mobile Networks & Applications Journal, 1999
• C. Parsa, J. J. Garcia-Luna-Aceves. TULIP: A link-level protocol for improving TCP over wireless links. Proc. IEEE WCNC'99, 1253-1257, 1999

... TULIP is tailored for the half-duplex radio links available with today's commercial radios and provides a MAC acceleration feature applicable to collision-avoidance MAC protocols (e.g., IEEE 802.11) to improve throughput. TULIP's timers rely on a maximum propagation delay over the link, rather than performing. a round-trip time estimate of the channel delay. The protocol does not require a base station and keeps no TCP state.