Unlike traditional routing schemes that route all traffic along the same path, multipath routing method split the traffic among several paths in order to ease congestion. It has been recognized by many that multipath routing can be fundamentally more efficient than the traditional approach of routing along single paths. Yet, in contrast to the single path routing approach, many research in the ...

Digital beam steering with a phased array has previously been demonstrated to improve the Signal/Multipath (S/M) level for precision applications by providing gain in the direction of the GPS satellites. A disadvantage of using horizontal planar antenna arrays is that the beam pattern is symmetric in the Up/Down directions. This means that only the phased array ground plane affects the antenna ...

Abstract. Regarding increasing smartphone receivers' usage in science and industry, they must improve their positioning algorithms to increase accuracy location-based software's productivity. For this goal, various studies have been presented remove or adjust the errors GNSS signal received by smartphones. Nevertheless, so far, no study has conducted investigate effect of multipath on observati...

With respect to the inherent advantages of multipath routing, nowadays multipath routing is known as an efficient mechanism to provide even network resource utilization and efficient data transmission in different networks. In this context, several multipath routing protocols have been developed over the past years. However, due to the time-varying characteristics of low-power wireless communic...

In recent years several multipath data transport mechanisms, such as MPTCP and XMP, have been introduced to effectively exploit the path diversity of data center networks (DCNs). However, these multipath schemes have not been widely deployed in DCNs. We argue that two key factors among others impeded their adoption: TCP incast and minimum window syndrome. First, these mechanisms are ill-suited ...

High resolution direction-of-arrival (DOA) estimation algorithm for array antennas becomes popular in these days. However, there are several error factors such as mutual coupling among the elements in actual array. Hence array calibration is indispensable to realize intrinsic performance of the algorithm. In the many applications, it is preferable that the calibration can be done in the practic...

Modern wireless communication systems suffer from phase shifting and, more importantly, from interference caused by multipath propagation. Multipath propagation results in an antenna receiving two or more copies of the signal sequence sent from the same source but that has been delivered via different paths. Multipath components are treated as redundant copies of the original data sequence and ...

Routing amid malicious attackers in multihop wireless networks with unreliable links is a challenging task. In this paper, we address the fundamental problem of how to choose secure and reliable paths in such environments. We formulate the multipath routing problem as optimization problems and propose algorithms with polynomial complexity to solve them. Game theory is employed to solve and anal...

A novel multipath mitigation technique for Global Positioning System (GPS) receivers using the Expectation-Maximization (EM) algorithm is proposed. It is well-known that conventional propagation delay estimation using parallel sliding correlators is only optimal in additive white Gaussian noise channel. In practical positioning systems, the weak GPS line-of-sight signal is generally embedded in...

Recently, a number of empirical models have been introduced in the literature for the behavior of direct path used in the design of algorithms for RF based indoor geolocation. Frequent absence of direct path has been a major burden on the performance of these algorithms directing researchers to discover algorithms using multipath diversity. However, there is no reliable model for the behavior o...