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This paper proposes a cooperation protocol between a secondary user (SU) and a primary user (PU) which dedicates a free frequency subband for the SU if cooperation results in energy saving. Time is slotted and users are equipped with…

Networking and Internet Architecture · Computer Science 2014-05-13 Ahmed El Shafie , Ahmed Sultan , Tamer Khattab

In this paper, we propose novel cooperative transmission protocols for delay limited coherent fading channels consisting of N (half-duplex and single-antenna) partners and one cell site. In our work, we differentiate between the relay,…

Information Theory · Computer Science 2007-07-16 Kambiz Azarian , Hesham El Gamal , Philip Schniter

Wireless information-centric networks consider storage as one of the network primitives, and propose to cache data within the network in order to improve latency and reduce bandwidth consumption. We study the throughput capacity and delay…

Networking and Internet Architecture · Computer Science 2015-05-01 Bita Azimdoost , Cedric Westphal , Hamid R. Sadjadpour

The broadcast throughput in a network is defined as the average number of messages that can be transmitted per unit time from a given source to all other nodes when time goes to infinity. Classical broadcast algorithms treat messages as…

Data Structures and Algorithms · Computer Science 2014-08-29 Noga Alon , Mohsen Ghaffari , Bernhard Haeupler , Majid Khabbazian

Wyner's soft-handoff network with mixed delay constraints is considered when neighbouring receivers can cooperate over rate-limited links. Each source message is a combination of independent "fast" and "slow" bits, where the former are…

Information Theory · Computer Science 2018-01-18 Homa Nikbakht , Michèle Wigger , Shlomo Shamai

Millimeter wave (mmWave) communications systems are promising candidate to support extremely high data rate services in future wireless networks. MmWave communications exhibit high penetration loss (blockage) and require directional…

Information Theory · Computer Science 2016-02-04 Roberto Congiu , Hossein Shokri-Ghadikolaei , Carlo Fischione , Fortunato Santucci

In this contribution, we consider a two-tiered network and focus on the coexistence between the two tiers at physical layer. We target our efforts on a long term evolution advanced (LTE-A) orthogonal frequency division multiple access…

Information Theory · Computer Science 2013-02-21 Marco Maso , Merouane Debbah , Lorenzo Vangelista

Meeting the diverse delay requirements of emerging wireless applications is one of the most critical goals for the design of ultradense networks. Though the delay of point-to-point communications has been well investigated using classical…

Information Theory · Computer Science 2018-04-20 Yi Zhong , Martin Haenggi , Fu-Chun Zheng , Wenyi Zhang , Tony Q. S. Quek , Weili Nie

Aiming at the disorder problem (i.e. uncertainty problem) of the utilization of network resources commonly existing in multi-hop transmission networks, the paper proposes the idea and the corresponding supporting theory, i.e. theory of…

Networking and Internet Architecture · Computer Science 2023-04-24 Bo Li , Mao Yang , Zhongjiang Yan

Delay-tolerant networking (DTN) offers a novel architecture that can be used to enhance store-carry-forward routing in satellite networks. Since these networks can take advantage of scheduled contact plans, distributed algorithms like the…

Networking and Internet Architecture · Computer Science 2023-05-09 Pablo G. Madoery , Gunes Karabulut Kurt , Halim Yanikomeroglu , Peng Hu , Khaled Ahmed , Stéphane Martel , Guillaume Lamontagne

In this paper, we propose a novel deep reinforcement learning framework to maximize user fairness in terms of delay. To this end, we devise a new version of the modified largest weighted delay first (M-LWDF) algorithm, which is called…

Information Theory · Computer Science 2022-01-26 M. López-Sánchez , A. Villena-Rodríguez , G. Gómez , F. J. Martín-Vega , M. C. Aguayo-Torres

Interference is a major issue limiting the performance in wireless networks. Cooperation among receivers can help mitigate interference by forming distributed MIMO systems. The rate at which receivers cooperate, however, is limited in most…

Information Theory · Computer Science 2009-11-12 I-Hsiang Wang , David N. C. Tse

Control of multihop Wireless networks in a distributed manner while providing end-to-end delay requirements for different flows, is a challenging problem. Using the notions of Draining Time and Discrete Review from the theory of fluid…

Networking and Internet Architecture · Computer Science 2017-04-20 Ashok Krishnan K. S. , Vinod Sharma

Recent information-theoretic studies have resulted in several interference management (IM) techniques that promise significant capacity improvements over interference avoidance techniques. However, in practice, the stable throughput region…

Information Theory · Computer Science 2021-05-18 Sajjad Nassirpour , Alireza Vahid

Intelligent wireless networks have long been expected to have self-configuration and self-optimization capabilities to adapt to various environments and demands. In this paper, we develop a novel distributed hierarchical deep reinforcement…

Signal Processing · Electrical Eng. & Systems 2023-12-06 Kaiwen Yu , Chonghao Zhao , Gang Wu , Geoffrey Ye Li

Low latency and high data rate performance are essential in wireless communication systems. This paper explores trade-offs between latency and data rates for optical wireless communication. We introduce a latency-optimized model utilizing…

Quantum Physics · Physics 2024-11-18 Zuhra Amiri , Florian Seitz , Janis Nötzel

The Load-Balanced Router architecture has received a lot of attention because it does not require centralized scheduling at the internal switch fabrics. In this paper we reexamine the architecture, motivated by its potential to turn off…

Networking and Internet Architecture · Computer Science 2013-01-04 Matthew Andrews , Lisa Zhang

We initiate a line of investigation into biological neural networks from an algorithmic perspective. We develop a simplified but biologically plausible model for distributed computation in stochastic spiking neural networks and study…

Neural and Evolutionary Computing · Computer Science 2016-10-10 Nancy Lynch , Cameron Musco , Merav Parter

We investigate a cognitive radio system with two secondary users who can cooperate with the primary user in relaying its packets to the primary receiver. In addition to its own queue, each secondary user has a queue to keep the primary…

Networking and Internet Architecture · Computer Science 2012-08-29 Ahmed El Shafie , Ahmed Sultan

Throughput and per-packet delay can present strong trade-offs that are important in the cases of delay sensitive applications.We investigate such trade-offs using a random linear network coding scheme for one or more receivers in single hop…

Networking and Internet Architecture · Computer Science 2012-02-06 Weifei Zeng , Chris T. K. Ng , Muriel Medard