In this paper we present the design, implementation, and performance analysis of Group-Aided Multicast (GAM), a scalable many-tomany reliable multicast transport protocol. GAM achieves high quality ACK trees while keeping the tree maintenance overhead reasonably low in the presence of dynamic group membership and route changes. It is supported by a group configuration mechanism organizing the m...

To interconnect a wireless sensor network (WSN) to the Internet, we propose to use TCP/IP as the standard protocol for all network entities. We present a cross layer designed communication architecture, which contains a MAC protocol, IP, a new protocol called Hopto-Hop Reliability (H2HR) protocol, and the TCP Support for Sensor Nodes (TSS) protocol. The MAC protocol implements the MAC layer of ...

We study in this paper TCP performance over a static multihop network that uses IEEE 802.11 protocol for access. For such networks it has been shown in [6] that TCP performance is mainly determined by the hidden terminal effects (and not by drop probabilities at buffers) which limits the number of packets that can be transmitted simultaneously in the network. We propose new approaches for impro...

Paper investigates transport control protocol (TCP) acknowledgment (ACK) optimization in low power or embedded devices to improve their performance on high-speed links by limiting the ACK rate. Today dominant for interconnecting network is TCP and it has a great influence entire operation if processing of exhausted data from stack. Therefore, not congested networks bottleneck no longer link but...

This document describes a possible congestion control mechanism for acknowledgement (ACKs) traffic in TCP. The document specifies an end-to-end acknowledgement congestion control mechanism for TCP that uses participation from both TCP hosts: the TCP data sender and the TCP data receiver. The TCP data sender detects lost or Explicit Congestion Notification (ECN)-marked ACK packets, and tells the...

While TCP is highly successful in the wire-line Internet, its performance fast degrades as the number of hops increases in multihop wireless networks. It is due to not only the half-duplex nature of the wireless medium, but also the two-way feature of TCP. In order to improve TCP performance in multihop wireless networks, we pay attention to its cumulative ACK policy. Systematically exploiting ...

In this paper, we consider remote state estimation with simultaneous wireless information and power transfer (SWIPT). A estimator receives the estimate transmitted by a sensor sends an acknowledgment (ACK) signal to via feedback channel. The has no other energy supply except that it can harvest from received ACK signal, which carries simultaneously. Since symbol error rate of depends on sensor&...

In many sensor network applications, it is critical for the base station to know the delivery (or execution) status of its broadcast messages (or commands). One straightforward way to do so is to let every sensor node send an authenticated acknowledgement (ACK) to the BS directly. However this naive solution is highly communication inefficient and may result in severe ACK implosion near the BS....

How to safely or reliably flood a packet via broadcast scheme to all nodes in computer networks is an important issue. However, it is a big challenge and critical problem to broadcast data packets over mobile ad hoc networks reliably due to the unsettled wireless links, high mobility, and the lack of the acknowledgment (ACK) scheme. Many solutions deal with this problem by adopting multiple uni...