نتایج جستجو برای: multipath

تعداد نتایج: 8465  

2005
Ronald Henry Tse John H. Jannotti Thomas W. Doeppner

Multipath transfers are a promising technique for enhancing the reliability of Internet connections, making better use of multihoming, and using spare network capacity. However, näıve designs and implementations of multipath transfer protocols risk substantial unfairness to well-behaved TCP flows. In this thesis, I propose two novel definitions of multipath TCP-fairness, and will show that mult...

2011
Omer Mohsin Mubarak Andrew G. Dempster

This paper presents experimental results of detecting multipath using a recently proposed parameter, early late phase (ELP). The paper shows that positioning error caused by multipath can be reduced by excluding the satellites detected as experiencing multipath from the navigation solution, except where the exclusion causes a significant increase in dilution of precision. Performance of this EL...

2015

Most end devices are now equipped with multiple network interfaces. Applications can exploit all available interfaces and benefit from multipath transmission. Recently Multipath TCP (MPTCP) was proposed to implement multipath transmission at the transport layer and has attracted lots of attentions from academia and industry. However, MPTCP only supports TCP based applications and traffic rate a...

Journal: :the modares journal of electrical engineering 2011
mansour nejati jahromi alireza rezayi

in a mobile ad hoc network, there are some features such as the ability to exploit multipath effect for information exchange with high reliability and low error rate. dealing with the aggressors and discovering the path in data transmission are of importance. approaching these goals ends in network promotion and efficiency. in this paper, the designed protocol is able to discover multipath fo...

2004
Chalermchon Satirapod Chris Rizos

It is well known that multipath disturbance is one of the major error sources impacting on high precision GPS positioning. The multipath disturbance is largely dependent on the receiver’s environment since satellite signals can arrive at the receiver via multiple paths, due to reflections from nearby objects such as trees, buildings, vehicles, etc. Although the multipath effect can be reduced b...

1999
So Ryoung Park Iickho Song Seokho Yoon Jooshik Lee Seong Ro Lee

Direct sequence code division multiple access (DS-CDMA) communication systems using random polyphase sequences with coherent reception in multipath fading channels are considered. By examining the asymptotic characteristics of the multiple access interference and multipath interference, we show that the DS-CDMA system performance with random mp-phase sequences of mp 3 is better than that with r...

2010
Paul D Groves Ziyi Jiang Benjamin Skelton Yacine Adane Izzet Kale

There are many methods for mitigating GNSS multipath errors. However, none of them completely eliminate the effects of multipath or suit all GNSS applications. A new class of multipath mitigation methods exploit new dualpolarization antenna technology. GNSS signals received 140 23rd International Technical Meeting of the Satellite Division of The Institute of Navigation, Portland, OR, September...

2018
Qiuzhao Zhang Wei Yang Shubi Zhang Xin Liu

Global Navigation Satellite System (GNSS) carrier phase measurement for short baseline meets the requirements of deformation monitoring of large structures. However, the carrier phase multipath effect is the main error source with double difference (DD) processing. There are lots of methods to deal with the multipath errors of Global Position System (GPS) carrier phase data. The BeiDou navigati...

2017
Lawrence Lau

Repeatable satellite orbits can be used for multipath mitigation in GPS-based deformation monitoring and other high-precision GPS applications that involve continuous observation with static antennas. Multipath signals at a static station repeat when the GPS constellation repeats given the same site environment. Repeat-time multipath filtering techniques need noise reduction methods to remove t...

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