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Mobile ad-hoc networks (MANET) are of particular importance in military communications. With the trend towards higher throughput requirements and spectrum congestion, researchers have looked at using multi-antenna techniques to enable concurrent transmissions within a one-hop MANET. However, the acquisition overhead has been shown to be a problem when dealing with concurrent transmission in MANET...
Ad-hoc Wi-Fi is well known in disaster communications systems, because of its ability to form infrastructure-free peer-to-peer networks. However, ad-hoc Wi-Fi has a major disadvantage due to the lack of coordinating infrastructure: Its energy consumption is very high, reducing battery life to as little as 1.5 hours. Thus, while it would be highly desirable for mobile phones to use ad-hoc Wi-Fi communications...
In this work, we study the problem of sparse recovery from superimposed, non-linearly distorted measurements. This challenge is particularly relevant to wireless sensor networks that consist of autonomous and spatially distributed sensor units. Here, each of the M wireless sensors acquires m individual measurements of an s-sparse source vector x0 ∈ ℝn. All devices transmit simultaneously to a central...
In this paper, we address the blind rendezvous problem of cognitive radios (CRs) quickly finding each other to establish communication in a multi-channel dynamic spectrum access (DSA) environment. We propose a multi-agent Q-learning based rendezvous strategy that allows CR-based secondary users (SUs) to actively explore a dynamic DSA environment and learn through resulting rewards which channels are...
The proliferation and daily congregation of modern mobile devices have created abundant opportunities for peer edge devices to share valuable data with each other. The short contact durations, relatively small sharing sizes, and uncertain data availability, demand agile, light weight peer based data sharing. In this paper, we propose Peer Data Sharing (PDS) that enables edge devices to discover which...
The proliferation and daily congregation of modern mobile devices have created abundant opportunities for peer edge devices to share valuable data with each other. The short contact durations, relatively small sharing sizes, and uncertain data availability, demand agile, light weight peer based data sharing. In this paper, we propose Peer Data Sharing (PDS) that enables edge devices to discover which...
Wireless power transfer (WPT) has emerged as an attractive solution to power future wireless communication networks. In this paper, we consider WPT using power beacons (PBs) for a millimeter wave (mmWave) wireless ad hoc network. Using stochastic geometry, we derive the moment generating function (MGF) and the nth cumulant of the aggregate received power from PBs at a reference receiver in closed-form...
A procedure to obtain index codes for a given index coding problem by using l-th Near Maximum Distance Separable Codes (NMDS) codes is presented. The advantage of using l-th NMDS codes is the reduction in field size required. A trade off between field size and length of index codes is observed. Using appropriate l-th NMDS codes binary index codes for the index coding problem can be constructed. The...
In spectrum sharing networks with relay cooperation, primary users can benefit from the assistance of secondary users while secondary users accessing the primary bandwidth to transmit their signals. Reasonable relay selection strategy can improve the performances of both primary and secondary users in terms of higher transmission data rate and lower outage probability, and at the same time, frequent...
As wind energy continues to expand to new frontiers in terms of the location, number, and size of wind turbines, the industry has begun to seek smarter operations and management solutions. Wireless sensing nodes could provide a low-cost platform to support a variety of applications designed to reduce the levelized cost of energy and increase the safety of wind turbines. However, a wireless sensor...
In this paper, we investigate the uplink transmission performance of low-power wide-area networks (LPWANs) with regards to coexisting radio modules using LoRa as an example. In doing so we adopt a new topology to model the network where the node locations of the network of focus (LoRa) follow a Poisson cluster process (PCP) while other coexisting interfering radio modules follow a Poisson point process...
Vehicle Ad Hoc Networks (VANETs) in Cooperative Intelligent Transport Systems (C-ITS) are based on the exchanges of messages among ITS-Stations (e.g., vehicles and roadside infrastructure) using the wireless G5 Dedicated Short Rate Communication (DSRC) standard to support safety-critical applications. VANETs require the authentication of ITS-stations and messages but the privacy of the drivers of...
A two-way half-duplex communication model is considered, where two nodes want to exchange a fixed number of bits with each other, and both nodes are powered by energy harvesting (EH) sources. The problem of minimizing the sum of the time required to send the required bits in both the directions is considered. The model also includes the processing cost at each node, that models the power needed for...
For time critical updates, it is desirable to maintain the freshness of the received information. We address the impact of hostile interference on information freshness by formulating a non-zero-sum two-player game, in which one player is the transmitter aiming to maintain the freshness of the information updates it sends to its receiver, and the other player is the interferer aiming to prevent this...
A Mobile Ad-hoc Network (MANET) covers a set of autonomous mobile nodes that communicates through the wireless communication in an infrastructure-less environment. Mostly, MANETs are used in group communication mechanisms like military applications, rescue operations, emergency search, vehicular ad-hoc communications and mining operations etc. In such type of networks, a group communication takes...
As time progresses, people are being more dependent on the advanced technologies available for communication. Hence there is a need for an application which can be used in an emergency situation where all communication networks fail. The Bluetooth technology is used here. The traditional Bluetooth technology can be used only for a one to one communication between two devices which are in the range...
Utilising multiple channels can increase the wireless ad hoc network capacity. Receiver Directed Transmission protocol (RDT) is designed to provide multichannel access using a single radio interface. RDT introduces a clever approach to support channel assignment and negotiation without relying on a control channel or time synchronisation. Protocols based on the RDT scheme normally use an extra radio...
Stream Control Transmission Protocol (SCTP) is one of the TCP/IP protocol stack transport protocol. In this paper we aim for improving the video transmission rates by significantly enhancing the SCTP protocol frame structures. We make use of SCTP multi-streaming feature for determining various frame formats that defines the effective transmission. The proposed unidirectional delay technique is used...
This paper considers the case of transmitting and receiving a continuous phase signal whose amplitude is degraded by an unknown uniformly distributed real signal. Therefore, the receiver does not have the knowledge of the instantaneous amplitude. In such context, this study is aimed at calculating an approximately transmission rate of the continuous phase signal with a consideration of the amplitude...
As the wireless networks has the capability toharvest RF signal's energy and therefore can be referred as selfsustained networks. Wireless networks can act as self-sustaining byharvesting the energy from RF signals (radio frequency). In recenttime, researchers have developed efficient circuitries &components for harvesting the RF energy for low powered wirelesselements. By its support, and based...
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