Results 81 to 90 of about 2,036 (196)

Communication Through Collisions: Opportunistic Utilization of Past Receptions

open access: yes, 2013
When several wireless users are sharing the spectrum, packet collision is a simple, yet widely used model for interference. Under this model, when transmitters cause interference at any of the receivers, their collided packets are discarded and need to ...
Avestimehr, A. Salman   +2 more
core   +1 more source

Adaptive demodulation using rateless erasure codes [PDF]

open access: yesIEEE Transactions on Communications, 2006
We introduce a rate-adaptive system in which the receiver demodulates only those bits that have a high probability of being correct, treating nondemodulated bits as erasures. Several sets of decision regions, derived using composite hypothesis testing, are proposed for 16-QAM and 16-phase-shift keying, which allow for the simple implementation of this ...
J.D. Brown   +2 more
openaire   +1 more source

Half-duplex Two-way Relaying for Wireless Sensor Networks with Adaptive Coding Rate: A Performance Optimization Framework

open access: yesJournal of Telecommunications and Information Technology
In this paper, a novel framework to enhance the reliability of wireless sensor networks (WSNs) by addressing the high probability of outage (OP) resulting from limited energy resources and unreliable channels.
The-Anh Ngo   +3 more
doaj   +1 more source

Rateless Multiple Access: Asymptotic Throughput Analysis and Improvement With Spatial Coupling

open access: yesIEEE Access, 2018
A novel random code-domain non-orthogonal multiple access (NOMA) framework, rateless multiple access (RMA), is studied in this paper. In RMA, instead of granting each user specific radio resources in a fixed and centralized manner, the access point ...
Zhaoyang Zhang   +3 more
doaj   +1 more source

Secure Rateless Deluge: Pollution-Resistant Reprogramming and Data Dissemination for Wireless Sensor Networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
A network reprogramming protocol is made for updating the firmware of a wireless sensor network (WSN) in situ. For security reasons, every firmware update must be authenticated to prevent an attacker from installing its code in the network.
Zhang Yu   +4 more
doaj  

Efficient Delivery of Scalable Video Using a Streaming Class Model

open access: yesInformation, 2018
When we couple the rise in video streaming with the growing number of portable devices (smart phones, tablets, laptops), we see an ever-increasing demand for high-definition video online while on the move.
Jason J. Quinlan   +2 more
doaj   +1 more source

A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications

open access: yesJournal of Electrical and Computer Engineering, 2014
A novel doping bits based belief propagation decoding algorithm, for rate-adaptive LDPC codes based on fixed bipartite graph code, is proposed. The proposed work modifies the decoding algorithm, by converting the puncturing nodes to regular source nodes ...
N. M. Masoodhu Banu, S. Sasikumar
doaj   +1 more source

A Review on Machine Learning for Channel Coding

open access: yesIEEE Access
The usage of artificial intelligence and machine learning in wireless communications is the stepping stone towards a technological breakthrough in the current limitations of wireless communication systems.
Heimrih Lim Meng Kee   +4 more
doaj   +1 more source

Cooperative Coded Data Dissemination for Wireless Sensor Networks

open access: yes, 2017
In this poster paper we present a data dissemination transmission abstraction for over the air programming (OAP) protocol which is fundamentally different from the previous hop by hop transmission protocols.
Ahmed, Daniyal, Qureshi, Jalaluddin
core   +1 more source

Precoded Integer-Forcing Universally Achieves the MIMO Capacity to Within a Constant Gap [PDF]

open access: yes, 2014
An open-loop single-user multiple-input multiple-output communication scheme is considered where a transmitter, equipped with multiple antennas, encodes the data into independent streams all taken from the same linear code.
Erez, Uri, Ordentlich, Or
core  

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