1. Introduction: Wireless sensor-actuator networks (WSAN) are cyber-physical systems (CPS) consisting of numerous sensing and actuation devices sharing information over a wireless communication network. This project studies resilient WSANs where " resilience " means that the system maintains an awareness of surrounding threats while taking actions assuring a return to operational normalcy as qu...

Harvesting ambient energy from the environment has become an attractive possibility for nodes in wireless networks. In addition to being environmentally friendly, energy harvesting networks promise almost perpetual operation which has been a holy grail for autonomous networks such as wireless sensor networks, and more recently M2M. However, achieving these benefits requires rethinking communica...

IEEE 802.11ah is a sub-1 GHz standard designed to meet the requirements of future machine-to-machine (M2M) communications. The standard should be able to support use cases for the M2M communications with thousands of stations capable of generating both periodic and aperiodic traffic for a single access point. In some cases, like environmental and agricultural monitoring, the nodes are typically...

With the rapid growth of internet-connected devices and their resource-constrained capabilities, current authentication mechanisms are unable to meet complex IoT application requirements, such as in Industrial Internet Things (IIoT), due increased computation, communication, storage overhead arising from these mechanisms. In IIoT, machine-to-machine (M2M) communication is an underlying technolo...

Abstract This paper addresses the problem of spectrum sharing and power allocation in M2M network, in which a licensee and multiple unlicensed M2M devices coexist and operate in the licensed channel in a local area. We develop a connectivity establishment mechanism in M2M network based on the cognitive radio technology, and derive the overall average probabilities of detection and false alarm b...

This paper presents our machine transliteration systems developed for the NEWS 2015 machine transliteration shared task. Our systems are applied to two tasks: English to Chinese and Chinese to English. For standard runs, in which only official data sets are used, we build phrase-based transliteration models with refined alignments provided by the M2M-aligner. For non-standard runs, we add multi...

In Machine-to-Machine (M2M) communications, authentication of a device is of upmost importance for applications of Internet ofThings. As traditional authentication schemes always assume the presence of a person, most authentication technologies cannot be applied in machine-centric M2M context. In this paper, we make the first attempt to formally model the authentication in M2M. We first model f...

This paper deals with the modeling and analysis of narrowband multiple-input multiple-output (MIMO) mobile-to-mobile (M2M) fading channels in relay-based cooperative networks. In the transmission links from the source mobile station to the destination mobile station via the mobile relay, non-line-of-sight (NLOS) propagation conditions are taken into account. A stochastic narrowband MIMO M2M ref...