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We show how to use a noisy feedback link to yield high-reliability streaming data communications. We demonstrate a strategy that can maintain the best known reliability function (error exponent) in delay, even when the feedback link is noisy. Only the capacity of the feedback channel need be sufficiently large for this result to hold. More detailed characterization of the feedback link, e.g., i...

This paper proposes a Real-Time Link Reliability Routing protocol for wireless sensor networks (WSNs). The protocol achieves to reduce packet deadline miss ratio while considering link reliability, two-hop velocity and power efficiency and utilizes memory and computational effective methods for estimating the link metrics. Numerical results provide insights that the protocol has a lower packet ...

In real-time systems, there exists a trade-off between schedulability and reliability. Most of the existing faulttolerant scheduling algorithms for real-time systems tend to favor schedulability over reliability. This may not be desirable when tasks have wide-varying utility values. This motivated the need for performance-oriented reliability measures, such as performance index, which inherentl...

The effects of aberration on the Bit-Error-Rate (BER) and reliability of free- space optical (FSO) communication links are investigated. Based on aberrated divergent rectangular partially coherent flat-topped beam formula on the receiver plane and considering the atmosphere losses due to absorption and scattering, numerical values for Power In Bucket (PIB), Signal to Noise Ratio (SNR) and BER a...

Received Jan 24, 2018 Revised Mar 25, 2018 Accepted Apr 21, 2018 Providing reliability in Wireless sensor networks is considered to be a challenging task, due to the limited capabilities in terms of energy, power and memory. The applications of these systems run in sensors with low level programming abstractions, limited capabilities and routing protocols. In this paper, we propose a strategy t...

In this work, we study the problem of maximizing path reliability in mesh networks against simultaneous failures of multiple network links. The links belong to shared risk link groups (SRLGs) that have arbitrary failure probabilities. This problem is NP-hard and we propose a heuristic algorithm for networks with large numbers of SRLGs as well as optimal solutions for networks with smaller numbe...

The present paper considers two infinite families of cone-manifolds endowed with spherical metric. The singular strata is either the torus knot t(2n + 1, 2) or the torus link t(2n, 2). Domains of existence for a spherical metric are found in terms of cone angles and volume formulæ are presented.

— In-Process testing metrics has been used from some years and its usage is frequently increasing. There are different metrics for software testing i.e to measure testing progress, Mean time between arrival of error, density of errors, fixation of errors, failure rate, test execution Productivity, cost of defects, Test efficiency and efficiency checking and so on. But all these metrics are inde...

Current algorithms for minimum-energy routing in wireless networks typically select minimum-cost multi-hop paths. In scenarios where the transmission power is fixed, each link has the same cost and the minimum-hop path is selected. In situations where the transmission power can be varied with the distance of the link, the link cost is higher for longer hops; the energy-aware routing algorithms ...