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In this paper, we consider the massive non-orthogonal multiple access (NOMA) with hybrid automatic repeat request (HARQ) for short packet communications. To reduce the latency, each user can perform one re-transmission provided that the…

Signal Processing · Electrical Eng. & Systems 2020-10-05 Fatemeh Ghanami , Ghosheh Abed Hodtani , Branka Vucetic , Mahyar Shirvanimoghaddam

In this paper, we aim to design an adaptive power allocation scheme to minimize the average transmit power of a hybrid automatic repeat request with chase combining (HARQ-CC) enabled non-orthogonal multiple access (NOMA) system under strict…

Information Theory · Computer Science 2019-11-05 Yanqing Xu , Donghong Cai , Fang Fang , Zhiguo Ding , Chao Shen , Gang Zhu

We consider the effects of decoding costs in energy harvesting communication systems. In our setting, receivers, in addition to transmitters, rely solely on energy harvested from nature, and need to spend some energy in order to decode…

Information Theory · Computer Science 2015-09-16 Ahmed Arafa , Sennur Ulukus

This paper studies the tradeoff between channel coding and ARQ (automatic repeat request) in Rayleigh block-fading channels. A heavily coded system corresponds to a low transmission rate with few ARQ re-transmissions, whereas lighter coding…

Information Theory · Computer Science 2015-03-13 Peng Wu , Nihar Jindal

We consider an energy harvesting (EH) transmitter communicating with a receiver through an EH relay. The harvested energy is used for data transmission, including the circuit energy consumption. As in practical scenarios, the system state,…

Information Theory · Computer Science 2019-04-09 Andrea Ortiz , Hussein Al-Shatri , Tobias Weber , Anja Klein

We consider a scenario where multiple users, powered by energy harvesting, send version updates over a fading multiple access channel (MAC) to an access point (AP). Version updates having random importance weights arrive at a user according…

Information Theory · Computer Science 2023-03-29 Gangadhar Karevvanavar , Rajshekhar V Bhat

We consider the problem of maximizing the harvested power in Multiple Input Multiple Output (MIMO) Simultaneous Wireless Information and Power Transfer (SWIPT) systems with power splitting reception. Different from recently proposed…

Information Theory · Computer Science 2018-05-03 Deepak Mishra , George C. Alexandropoulos

In this paper, we compare the performance of three different cooperative Hybrid Automatic Repeat reQuest (HARQ) protocols for slow-fading half-duplex orthogonal multiple access multiple relay channel. Channel State Information (CSI) is…

Signal Processing · Electrical Eng. & Systems 2018-08-29 Stefan Cerović , Raphaël Visoz , Louis Madier

The intelligent reflecting surface (IRS) is an emerging technique to extend the wireless coverage. In this letter, the performance of hybrid automatic repeat request (hybrid-ARQ) for an IRS-assisted system is analyzed. More specifically,…

Information Theory · Computer Science 2020-12-04 Y. Ai , M. Mohamed , L. Kong , A. Al-Samen , M. Cheffena

A new random linear network coding scheme for reliable communications for time division duplexing channels is proposed. The setup assumes a packet erasure channel and that nodes cannot transmit and receive information simultaneously. The…

Information Theory · Computer Science 2008-09-16 Daniel E. Lucani , Milica Stojanovic , Muriel Médard

We optimize resource allocation to enable communication security in simultaneous wireless information and power transfer (SWIPT) for internet-of-things (IoT) networks. The resource allocation algorithm design is formulated as a non-convex…

Information Theory · Computer Science 2017-01-30 Elena Boshkovska , Nikola Zlatanov , Linglong Dai , Derrick Wing Kwan Ng , Robert Schober

Scheduling the transmission of time-sensitive data to multiple users over error-prone communication channels is studied with the goal of minimizing the long-term average age of information (AoI) at the users under a constraint on the…

Machine Learning · Computer Science 2018-06-04 Elif Tuğçe Ceran , Deniz Gündüz , András György

This paper investigates the incremental-redundancy hybrid-automatic repeat request (IR-HARQ) transmission over independent block-fading channels in the presence of an eavesdropper, where the secrecy of the transmission is ensured via…

Information Theory · Computer Science 2018-04-17 Maël Le Treust , Leszek Szczecinski , Fabrice Labeau

We propose a novel adaptive and causal random linear network coding (AC-RLNC) algorithm with forward error correction (FEC) for a point-to-point communication channel with delayed feedback. AC-RLNC is adaptive to the channel condition, that…

Information Theory · Computer Science 2019-09-30 Alejandro Cohen , Derya Malak , Vered Bar Bracha , Muriel Medard

Quantifying the average communication rate (ACR) of a networked event-triggered stochastic control system (NET-SCS) with deterministic thresholds is challenging due to the non-stationary nature of the system's stochastic processes. For a…

Signal Processing · Electrical Eng. & Systems 2024-04-15 Zengjie Zhang , Qingchen Liu , Mohammad H. Mamduhi , Sandra Hirche

This paper develops a contention-based opportunistic feedback technique towards relay selection in a dense wireless network. This technique enables the forwarding of additional parity information from the selected relay to the destination.…

Information Theory · Computer Science 2012-08-27 Caleb K. Lo , Robert W. Heath, , Sriram Vishwanath

In this paper, we consider a wireless-powered cooperative communication network consisting of one hybrid access-point (AP), one source, and one relay. In contrast to conventional cooperative networks, the source and relay in the considered…

Information Theory · Computer Science 2015-06-19 He Chen , Yonghui Li , Joao Luiz Rebelatto , Bartolomeu F. Uchoa-Filhoand , Branka Vucetic

Current approaches to the practical implementation of network coding are batch-based, and often do not use feedback, except possibly to signal completion of a file download. In this paper, the various benefits of using feedback in a network…

Networking and Internet Architecture · Computer Science 2009-04-13 Jay Kumar Sundararajan , Devavrat Shah , Muriel Medard

We consider a half-duplex wireless relay network with hybrid-automatic retransmission request (HARQ) and Rayleigh fading channels. In this paper, we analyze the outage probability of the multi-relay delay-limited HARQ system with…

Information Theory · Computer Science 2012-02-14 Behrouz Maham , Aydin Behnad , Merouane Debbah

Delay-reliability (D-R), and throughput-delay-reliability (T-D-R) tradeoffs in an ad hoc network are derived for single hop and multi-hop transmission with automatic repeat request (ARQ) on each hop. The delay constraint is modeled by…

Information Theory · Computer Science 2010-04-27 Rahul Vaze