Congestion avoidance is an important traffic engineering task, which can be performed by making use of loadbalancing technique when a link is over loaded or failure of link occur in Multi-Path Switching Systems . Multipath Switching Systems are capable of transferring high rate data in networks. As preserving the inter flow packet orders while avoiding congestion is a major issue in considerati...

One of the new features introdu Speed Downlink Packet Access (H protocol enhancements designed throughput to users with favorabl the N-channel stop-and-wait (SAW paper, we investigate the perform presence of the stalling of packe reordering buffer due to the N impacts of different transmission and mobile speed are also investiga

Given the growing importance of quantitative relationships between user-perceived Quality of Experience (QoE) and network Quality of Service (QoS), this paper investigates the IQX hypothesis for two voice codecs, iLBC and G.711. This hypothesis expresses QoE as an exponential function of QoS degradation. The experiments are carried out in a controlled environment using the softphone SJPhone, th...

In this paper we focus on estimating the amount of information that can be embedded in the sequencing of packets in ordered channels. Ordered channels, e.g. TCP, rely on sequence numbers to recover from packet loss and packet reordering. We propose a formal model for transmitting information by packet-reordering. We present natural and well-motivated channel models and jamming models including ...

TCP/IP header compression has long been used to send information efficiently and to improve the response time of communication systems. It is also well known that errors on the link where header compression is used can deteriorate the performance. In addition, the recently noticed high frequency of some computer networking problems can make the performance of header compression even worse. Thes...

Link aggregation techniques are often used to achieve higher communication bandwidth by striping network traffic across multiple transmission channels. Due to the variations in bandwidth, latency and loss rate on different channels, link striping suffers from packet reordering thereby adversely affecting the performance of any QoS concerned applications. Hardware-based solutions often prolong t...

This paper presents results from an eight-day network packet trace of MosquitoNet. MosquitoNet allows users of laptop computers to switch seamlessly between a metropolitan-area wireless network and a wired network (10 Mbit/s Ethernet) available in ooces and on-campus residences. Results include the amount of user mobility between the wired and wireless networks, the amount of mobility within th...

We have recently introduced a novel compression algorithm for packet networks: delayed-dictionary compression, which enables an improved compression-latency trade-off. By allowing delay in the dictionary construction, the algorithm handles effectively the problems of packet drops and packet reordering: Its compression quality is close to that of streaming compression (and is substantially bette...

We have analyzed the measurements of end-to-end VoIP packets by tracing UDP packets between 12 testboxes in the Netherlands. We show that voice probes experience low delay and loss in the network. Moreover, we find that the reordering of packets has virtually no impact on the voice quality in our experiments. To determine the quality of VoIP calls over time, we have monitored the end-to-end pac...

This article considers the cooperation between base station and relay stations to increase system throughput in time-slotted relaying wireless networks, such as dynamic time division multiple access systems. We focus on optimal throughput scheduling policies for the cooperative relaying at the network layer level. It is shown that the resulting policy for this cooperative protocol obtains the o...