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A key pre-distribution scheme (KPS) based on multiple codewords of block codes is presented for wireless sensor networks. The connectivity and security of the proposed KPS, quantified in terms of probabilities of sharing common keys for…

密码学与安全 · 计算机科学 2014-07-28 Hamidreza Arjmandi , Farshad Lahouti

In this paper, we investigate network nest coded modulation schemes for multiple access relay channels. The performance of the distributed systems which are based on distributed convolutional codes with network coded modulation is…

信息论 · 计算机科学 2022-03-16 Zihuai Lin

The problem of communicating a single message to a destination in presence of multiple relay nodes, referred to as cooperative unicast network, is considered. First, we introduce "Mixed Noisy Network Coding" (MNNC) scheme which generalizes…

信息论 · 计算机科学 2014-10-21 Arash Behboodi , Pablo Piantanida

A linear code with parameters $[n, k, n-k+1]$ is called a maximum distance separable (MDS for short) code. A linear code with parameters $[n, k, n-k]$ is said to be almost maximum distance separable (AMDS for short). A linear code is said…

信息论 · 计算机科学 2023-07-11 Zhonghua Sun , Cunsheng Ding

This work presents a theoretical analysis of the probability of successfully retrieving data encoded with MDS codes (e.g., Reed-Solomon codes) in DNA storage systems. We study this probability under independent and identically distributed…

信息论 · 计算机科学 2026-05-08 Serge Kas Hanna

Maximum distance separable (MDS) codes are widely used in storage systems to protect against disk (node) failures. A node is said to have capacity $l$ over some field $\mathbb{F}$, if it can store that amount of symbols of the field. An…

信息论 · 计算机科学 2016-11-17 Itzhak Tamo , Zhiying Wang , Jehoshua Bruck

Ensuring that information flowing through a network is secure from manipulation and eavesdropping by unauthorized parties is an important task for network administrators. Many cyber attacks rely on a lack of network-level information flow…

网络与互联网体系结构 · 计算机科学 2020-09-22 Stefan Achleitner , Quinn Burke , Patrick McDaniel , Trent Jaeger , Thomas La Porta , Srikanth Krishnamurthy

Multicast in Wireless Sensor Networks (WSNs) is an attractive mechanism for delivering data to multiple receivers as it saves bandwidth. To guarantee the security of multicast, the group key is used to encrypt and decrypt the packages.…

密码学与安全 · 计算机科学 2012-05-08 Lin Yao , Bing Liu , Feng Xia , Guowei Wu , Qiang Lin

In this paper, we investigate maximum distance separable (MDS) codes based group coded caching in fog radio access networks (F-RANs). The goal is to minimize the average fronthaul rate under nonuniform file popularity. Firstly, an MDS codes…

信息论 · 计算机科学 2022-06-24 Qianli Tan , Yanxiang Jiang , Fu-Chun Zheng , Mehdi Bennis , Xiaohu You

Data collection in Wireless Sensor Networks (WSN) draws significant attention, due to emerging interest in technologies raging from Internet of Things (IoT) networks to simple "Presence" applications, which identify the status of the…

信息论 · 计算机科学 2018-10-17 Alejandro Cohen , Asaf Cohen , Omer Gurewitz

We consider the problem of weakly-private information retrieval (WPIR) when data is encoded by a maximum distance separable code and stored across multiple servers. In WPIR, a user wishes to retrieve a piece of data from a set of servers…

信息论 · 计算机科学 2024-01-18 Asbjørn O. Orvedal , Hsuan-Yin Lin , Eirik Rosnes

We study resilient leader-follower consensus of multi-agent systems (MASs) in the presence of adversarial agents, where agents' communication is modeled by time-varying topologies. The objective is to develop distributed algorithms for the…

多智能体系统 · 计算机科学 2024-11-18 Liwei Yuan , Hideaki Ishii

We propose a secure transmission scheme for a relay wiretap channel, where a source communicates with a destination via a decode-and-forward relay in the presence of spatially random-distributed eavesdroppers. We assume that the source is…

信息论 · 计算机科学 2016-11-17 Chenxi Liu , Nan Yang , Jinhong Yuan , Robert Malaney

This paper considers a Strongly Asynchronous and Slotted Massive Access Channel (SAS-MAC) where $K_n:=e^{n\nu}$ different users transmit a randomly selected message among $M_n:=e^{nR}$ ones within a strong asynchronous window of length…

信息论 · 计算机科学 2018-07-27 Sara Shahi , Daniela Tuninetti , Natasha Devroye

We propose a simple yet efficient scheme for a set of energy-harvesting sensors to establish secure communication with a common destination (a master node). An eavesdropper attempts to decode the data sent from the sensors to their common…

网络与互联网体系结构 · 计算机科学 2016-12-26 Ahmed El Shafie , Naofal Al-Dhahir

In a distributed space-time coding scheme, based on the relay channel model, the relay nodes co-operate to linearly process the transmitted signal from the source and forward them to the destination such that the signal at the destination…

信息论 · 计算机科学 2008-06-20 J. Harshan , B. Sundar Rajan

Minimum storage regenerating (MSR) codes are a class of maximum distance separable (MDS) array codes capable of repairing any single failed node by downloading the minimum amount of information from each of the helper nodes. However, MSR…

信息论 · 计算机科学 2024-08-30 Vinayak Ramkumar , Netanel Raviv , Itzhak Tamo

This short note revisits the problem of designing secure minimum storage regenerating (MSR) codes for distributed storage systems. A secure MSR code ensures that a distributed storage system does not reveal the stored information to a…

信息论 · 计算机科学 2016-08-08 Ankit Singh Rawat

The problem of securing a network coding communication system against an eavesdropper adversary is considered. The network implements linear network coding to deliver n packets from source to each receiver, and the adversary can eavesdrop…

信息论 · 计算机科学 2019-05-07 Danilo Silva , Frank R. Kschischang

We study the problem of constructing secure regenerating codes that protect data integrity in distributed storage systems (DSS) in which some nodes may be compromised by a malicious adversary. The adversary can corrupt the data stored on…

信息论 · 计算机科学 2015-04-24 Rawad Bitar , Salim El Rouayheb