The Measurement/Logging While Drilling (M/LWD) system is a kind of sensors system which is used to help oil/gas drilling field technicians to steer well drilling. In M/LWD, several kinds of sensors are installed into drill string to measure the underground logging data during well drilling operations, and a sink within the drill string collects the logging data from the sensors and then transmi...

SUMMARY In order to exploit fully the frequency diversity benefits of multicarrier modulation (MCM), and the very nature of the frequency selective radio channel, we investigate an erasure decoded π/4 QDPSK MCM (ED-MCM) by employing simple Hamming (block) code. We propose the threshold-free criteria, i.e. relative minimum receive power test (RMRPT) and relative maximum decision error test (RMDE...

This work presents two new construction techniques for q-ary Gossip codes from tdesigns and Traceability schemes. These Gossip codes achieve the shortest code length specified in terms of code parameters and can withstand erasures in digital fingerprinting applications. This work presents the construction of embedded Gossip codes for extending an existing Gossip code into a bigger code. It disc...

This paper considers error-correction for information in array design, i.e., two-dimensional design such as QR-codes. The error model is multi deletion/substitution/erasure errors. Code construction the errors and an application of code are provided. decoding technique uses error-locator deletion codes.

Large distributed storage systems use erasure codes to reliably store data. Compared to replication, erasure codes are capable of reducing storage overhead. However, repairing lost data in an erasure coded system requires reading from many storage devices and transferring over the network large amounts of data. Theoretically, Minimum Storage Regenerating (MSR) codes can significantly reduce thi...

LT codes, the first universal erasure-correcting codes, have near-optimal performance over binary erasure channels for any erasure probability, but exhibit high bit error rate and error floor over the noisy channels. This paper investigated the performance of LT codes over the additive white Gaussian noise channels. We designed the systematic LT codes through reconstructing the bipartite graph ...

Edge computing, as a new computing paradigm, brings cloud computing’s and storage capacities to network edge for providing low latency services users. The networked servers in specific area constitute edge systems (ESSs), where popular data can be stored serve the users area. novel ESSs raise many opportunities well unprecedented challenges. Most existing studies of focus on replicas sys...

In order to build a large scale quantum computer, one must be able correct errors extremely fast. We design fast decoding algorithm for topological codes Pauli and erasure combination of both erasure. Our has worst case complexity $O(n \alpha(n))$, where $n$ is the number physical qubits $\alpha$ inverse Ackermann's function, which very slowly growing. For all practical purposes, $\alpha(n) \le...

Abstruct-The random-code capacity region of the multiple-access arbitrarily varying channel subject to both state and input constraints is determined. Consideration of a simple erasure channel shows that the capacity region is not convex in general.

| The random-code capacity region of the multiple-access arbitrarily varying channel subject to both state and input constraints is determined. Consideration of a simple erasure channel shows that the capacity region is not convex in general.