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The coupling of scale-free networks with mobile unstructured networks is certainly unusual. In mobile networks, connections active at a given instant are constrained by the geographical distribution of mobile nodes, and by the limited…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-17 Stefano Ferretti , Vittorio Ghini

Spectrum is a scarce commodity, and considering the spectrum scarcity faced by the wireless-based service providers led to high congestion levels. Technical inefficiencies from pooled spectrum (this is nothing but the "common carrier…

Networking and Internet Architecture · Computer Science 2010-06-30 Santosh Kumar Singh

Modern processors dynamically control their operating frequency to optimize resource utilization, maximize energy savings, and conform to system-defined constraints. If, during the execution of a software workload, the running average of…

Cryptography and Security · Computer Science 2023-05-25 Chen Liu , Abhishek Chakraborty , Nikhil Chawla , Neer Roggel

In this work we study an Arbitrarily Varying Channel (AVC) with quadratic power constraints on the transmitter and a so-called "oblivious" jammer (along with additional AWGN) under a maximum probability of error criterion, and no private…

Information Theory · Computer Science 2013-01-29 Farzin Haddadpour , Mahdi Jafari Siavoshani , Mayank Bakshi , Sidharth Jaggi

In an attempt to utilize spectrum resources more efficiently, protocols sharing licensed spectrum with unlicensed users are receiving increased attention. From the perspective of cellular networks, spectrum underutilization makes spatial…

Networking and Internet Architecture · Computer Science 2013-12-10 Brett Kaufman , Jorma Lilleberg , Behnaam Aazhang

In fading channels, power allocation over channel state may bring a rate increment compared to the fixed constant power mode. Such a rate increment is referred to power allocation gain. It is expected that the power allocation gain varies…

Information Theory · Computer Science 2014-12-25 Zhengchuan Chen , Pingyi Fan , Dapeng Wu , Liquan Shen

In wireless ad hoc networks, distributed nodes can collaboratively form an antenna array for long-distance communications to achieve high energy efficiency. In recent work, Ochiai, et al., have shown that such collaborative beamforming can…

Information Theory · Computer Science 2007-07-13 Athina P. Petropulu , Lun Dong , H. Vincent Poor

To ensure reliable communication in randomly varying and error-prone channels, wireless systems use adaptive modulation and coding (AMC) as well as hybrid ARQ (HARQ). In order to elucidate their compatibility and interaction, we compare the…

Information Theory · Computer Science 2016-06-17 Redouane Sassioui , Mohammed Jabi , Leszek Szczecinski , Long Bao Le , Mustapha Benjillali , Benoit Pelletier

Constrained by weak signal strength and significant inter-cell interference, users located at the cell edge in a cellular network suffer from inferior service quality. Recently, cell-free massive MIMO (CFmMIMO) has gained considerable…

Information Theory · Computer Science 2025-02-25 Wei Jiang , Hans Dieter Schotten

Cortical neural circuits display highly irregular spiking in individual neurons but variably sized collective firing, oscillations and critical avalanches at the population level, all of which have functional importance for information…

Disordered Systems and Neural Networks · Physics 2021-01-08 Junhao Liang , Tianshou Zhou , Changsong Zhou

We propose a novel multipath multi-hop adaptive and causal random linear network coding (AC-RLNC) algorithm with forward error correction. This algorithm generalizes our joint optimization coding solution for point-to-point communication…

Information Theory · Computer Science 2020-10-27 Alejandro Cohen , Guillaume Thiran , Vered Bar Bracha , Muriel Médard

We introduce a comprehensive approach to enhance the security, privacy, and sensing capabilities of integrated sensing and communications (ISAC) systems by leveraging random frequency agility (RFA) and random pulse repetition interval (PRI)…

This chapter presents joint interference suppression and power allocation algorithms for DS-CDMA and MIMO networks with multiple hops and amplify-and-forward and decode-and-forward (DF) protocols. A scheme for joint allocation of power…

Information Theory · Computer Science 2013-01-28 Patrick Clarke , Rodrigo C. de Lamare

The question of robust direct communication in vehicular networks is discussed. In most state-of-the-art approaches, there is no central entity controlling channel access, so there may be arbitrary interference from other parties. Thus, a…

Information Theory · Computer Science 2017-10-31 Christian Arendt , Janis Nötzel , Holger Boche

Ad hoc network is a collection of wireless mobile nodes that dynamically form a temporary network without the use of any existing network infrastructure or centralized administration. A cognitive radio is a radio that can change its…

Networking and Internet Architecture · Computer Science 2012-07-25 S. Selvakanmani , M. Sumathi

In mobile adhoc networks, congestion occurs with limited resources. The standard TCP congestion control mechanism is not able to handle the special properties of a shared wireless channel. TCP congestion control works very well on the…

Networking and Internet Architecture · Computer Science 2014-01-21 Ashish Kumar Mourya , Niraj Singhal

Previous work on ad hoc network capacity has focused primarily on source-destination throughput requirements for different models and transmission scenarios, with an emphasis on delay tolerant applications. In such problems, network…

Information Theory · Computer Science 2007-07-13 Cristina Comaniciu , H. Vincent Poor

Wireless networking is becoming an increasingly important and popular way of providing global information access to users on the move. One of the main challenges for seamless mobility is the availability of simple and robust handoff…

Networking and Internet Architecture · Computer Science 2012-06-18 Siva Alagu , T. Meyyappan

Interference in wireless networks is one of the key-capacity limiting factor. The multicast capacity of an ad- hoc wireless network decreases with an increasing number of transmitting and/or receiving nodes within a fixed area. Digital…

Information Theory · Computer Science 2011-12-20 Jalaluddin Qureshi , Chuan Heng Foh , Jianfei Cai

Co-channel interference (CCI) is a performance limiting factor in molecular communication (MC) systems with shared medium. Interference alignment (IA) is a promising scheme to mitigate CCI in traditional communication systems. Due to the…

Information Theory · Computer Science 2022-06-28 Maryam Farahnak-Ghazani , Mahtab Mirmohseni , Masoumeh Nasiri-Kenari