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Consider the single-group multicast beamforming problem, where multiple users receive the same data stream simultaneously from a single transmitter. The problem is NP-hard and all existing algorithms for the problem either find suboptimal…

Information Theory · Computer Science 2017-06-07 Cheng Lu , Ya-Feng Liu

We consider the analysis and design of distributed wireless networks wherein remote radio heads (RRHs) coordinate transmissions to serve multiple users on the same resource block (RB). Specifically, we analyze two possible multiple-input…

Information Theory · Computer Science 2021-11-19 Hussein A. Ammar , Raviraj Adve , Shahram Shahbazpanahi , Gary Boudreau

IP mobility addresses the problem of changing the network point-of-attachment transparently during movement. Mobile IP is the proposed standard by IETF. Several studies, however, have shown that Mobile IP has several drawbacks, such as…

Networking and Internet Architecture · Computer Science 2007-05-23 Ahmed Helmy

We consider the uplink of a cellular communication system with $K$ users per cell and infinite base stations equally spaced on a line. The system is conventional, i.e., it does not make use of joint cell-site processing. A hard fairness…

Information Theory · Computer Science 2008-02-22 Daeyoung Park , Giuseppe Caire

This paper proposes a relaying strategy for the multiple-relay network in which each relay decodes a selection of transmitted messages by other transmitting terminals, and forwards parities of the decoded codewords. This protocol improves…

Information Theory · Computer Science 2007-11-20 P. Razaghi , W. Yu

Prefill-decode (PD) disaggregation has become the standard architecture for large-scale LLM serving, but in practice its deployment boundary is still determined by KVCache transfer. In conventional dense-attention models, prefill generates…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-23 Ruoyu Qin , Weiran He , Yaoyu Wang , Zheming Li , Xinran Xu , Yongwei Wu , Weimin Zheng , Mingxing Zhang

In this paper a unified approach for power allocation (PA) problem in multi-hop orthogonal frequency division multiplexing (OFDM) amplify-and-forward (AF) relaying systems has been developed. In the proposed approach, we consider short and…

Information Theory · Computer Science 2015-08-07 Amin Azari , Jalil S. Harsini , Farshad Lahouti

Joint unicast and multicast transmissions are becoming increasingly important in practical wireless systems, such as Internet of Things networks. This paper investigates a cell-free massive multiple-input multiple-output system that…

Signal Processing · Electrical Eng. & Systems 2025-08-20 Mustafa S. Abbas , Zahra Mobini , Hien Quoc Ngo , Hyundong Shin , Michail Matthaiou

This paper presents an energy-efficient transmission framework for federated learning (FL) in industrial Internet of Things (IIoT) environments with strict latency and energy constraints. Machinery subnetworks (SNs) collaboratively train a…

Signal Processing · Electrical Eng. & Systems 2026-05-25 Hamid Reza Hashempour , Mostafa Nozari , Gilberto Berardinelli , Yanjiao Li , Jie Zhang , Hien Quoc Ngo , Shashi Raj Pandey

The demand of massive access to the same multimedia content at the same time is one major challenge for next-generation cellular networks in densely-packed urban areas. The content-aware multicast transmission strategies provide promising…

Information Theory · Computer Science 2020-04-07 Ahmet Zahid Yalcin , Yavuz Yapici

As 6G networks demand massive connectivity and stronger interference control, rate-splitting multiple access (RSMA) is attractive because it superposes a common stream and user-private streams and remains effective under imperfect CSIT and…

Signal Processing · Electrical Eng. & Systems 2026-04-15 Jinyuan Liu , Yong Liang Guan , Tuo Wu , Kai-Kit Wong , Bruno Clerckx

Relaying over power line communication (PLC) channels can considerably enhance the performance and reliability of PLC systems. This paper is dedicated to study and analyze the energy efficiency of multi-hop cooperative relaying PLC systems.…

Signal Processing · Electrical Eng. & Systems 2018-08-02 Khaled M. Rabie , Bamidele Adebisi , Haris Gacanin , Galymzhan Nauryzbayev , Augustine Ikpehai

Many emerging distributed applications, including big data analytics, generate a number of flows that concurrently transport data across data center networks. To improve their performance, it is required to account for the behavior of a…

Networking and Internet Architecture · Computer Science 2020-07-07 Cristian Hernandez Benet , Andreas J. Kassler , Gianni Antichi , Theophilus A. Benson , Gergely Pongracz

We consider the transmission of a common message from a transmitter to three receivers over a broadcast channel, referred to as a multicast channel in this case. All the receivers are allowed to cooperate with each other over full-duplex…

Information Theory · Computer Science 2017-02-20 Victor Exposito , Sheng Yang , Nicolas Gresset

In this work, we propose ultra-low-complexity design solutions for multi-group multicast beamforming in large-scale systems. For the quality-of-service (QoS) problem, by utilizing the optimal multicast beamforming structure obtained…

Information Theory · Computer Science 2023-04-17 Chong Zhang , Min Dong , Ben Liang

Network coding (NC), when combined with multipath routing, enables a linear programming (LP) formulation for a multi-source multicast with intra-session network coding (MISNC) problem. However, it is still hard to solve using conventional…

Networking and Internet Architecture · Computer Science 2020-12-29 Jianwei Zhang

Federated recommender system (FRS), which enables many local devices to train a shared model jointly without transmitting local raw data, has become a prevalent recommendation paradigm with privacy-preserving advantages. However, previous…

Information Retrieval · Computer Science 2022-12-27 Honglei Zhang , Fangyuan Luo , Jun Wu , Xiangnan He , Yidong Li

A major practical limitation of the Maddah-Ali-Niesen coded caching techniques is their high subpacketization level. For the simple network with a single server and multiple users, Yan \emph{et al.} proposed an alternative scheme with the…

Information Theory · Computer Science 2020-01-23 Qifa Yan , Michèle Wigger , Sheng Yang

Efficient data selection is crucial for enhancing the training efficiency of deep neural networks and minimizing annotation requirements. Traditional methods often face high computational costs, limiting their scalability and practical use.…

Machine Learning · Computer Science 2026-03-30 Humaira Kousar , Hasnain Irshad Bhatti , Jaekyun Moon

This work investigates the energy-efficient resource allocation for layered-division multiplexing (LDM) based non-orthogonal multicast and unicast transmission in cell-free massive multiple-input multiple-output (MIMO) systems, where each…

Information Theory · Computer Science 2020-07-21 Fangqing Tan , Peiran Wu , Yik-Chung Wu , Minghua Xia