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In this paper, the content service provision of information-centric vehicular networks (ICVNs) is investigated from the aspect of mobile edge caching, considering the dynamic driving-related context information. To provide up-to-date…

Networking and Internet Architecture · Computer Science 2020-05-12 Shan Zhang , Junjie Li , Hongbin Luo , Jie Gao , Lian Zhao , Xuemin , Shen

Effective Adaptive BitRate (ABR) algorithm or policy is of paramount importance for Real-Time Video Communication (RTVC) amid this pandemic to pursue uncompromised quality of experience (QoE). Existing ABR methods mainly separate the…

Multimedia · Computer Science 2023-12-04 Yueheng Li , Hao Chen , Bowei Xu , Zicheng Zhang , Zhan Ma

This study considers a wireless network where an access point (AP) broadcasts timely updates to numerous mobile users. The timeliness of information owned by a user is characterized by the age of information. Frequently broadcasting the…

Networking and Internet Architecture · Computer Science 2021-02-22 Yu-Pin Hsu

The 5G Phase-2 and beyond wireless systems will focus more on vertical applications such as autonomous driving and industrial Internet-of-things, many of which are categorized as ultra-Reliable Low-Latency Communications (uRLLC). In this…

Information Theory · Computer Science 2019-12-04 Zhiyuan Jiang , Siyu Fu , Sheng Zhou , Zhisheng Niu , Shunqing Zhang , Shugong Xu

Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) with two source nodes transmitting different types of data to…

Information Theory · Computer Science 2019-03-13 Zheng Chen , Nikolaos Pappas , Emil Björnson , Erik G. Larsson

Efficient and dynamic path planning has become an important topic for urban areas with larger density of connected vehicles (CV) which results in reduction of travel time and directly contributes to environmental sustainability through…

Signal Processing · Electrical Eng. & Systems 2024-05-15 S. Norouzi , N. Azarasa , M. R. Abedi , N. Mokari , S. E. Seyedabrishami , H. Saeedi , E. A. Jorswieck

Communication delays can be catastrophic for multiagent systems. However, most existing state-of-the-art multiagent trajectory planners assume perfect communication and therefore lack a strategy to rectify this issue in real-world…

Robotics · Computer Science 2023-12-27 Kota Kondo , Reinaldo Figueroa , Juan Rached , Jesus Tordesillas , Parker C. Lusk , Jonathan P. How

In this paper, the throughput of relay networks with multiple source-destination pairs under queueing constraints has been investigated for both variable-rate and fixed-rate schemes. When channel side information (CSI) is available at the…

Information Theory · Computer Science 2015-10-08 Yi Li , M. Cenk Gursoy , Senem Velipasalar

Existing mobile devices have the capability to use multiple network technologies simultaneously to help increase performance; but they rarely, if at all, effectively use these technologies in parallel. We first present empirical data to…

Networking and Internet Architecture · Computer Science 2013-06-11 Jason Cloud , Flavio du Pin Calmon , Weifei Zeng , Giovanni Pau , Linda Zeger , Muriel Medard

A major challenge of wireless multicast is to be able to support a large number of users while simultaneously maintaining low delay and low feedback overhead. In this paper, we develop a joint coding and feedback scheme named Moving Window…

Information Theory · Computer Science 2014-09-23 Fei Wu , Yin Sun , Yang Yang , Kannan Srinivasan , Ness B. Shroff

Age-of-information (AoI) is a novel metric that measures the freshness of information in status update scenarios. It is essential for real-time applications to transmit status update packets to the destination node as timely as possible.…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-01-15 Qiaobin Kuang , Jie Gong , Xiang Chen , Xiao Ma

Virtual reality (VR) is becoming prevalent with a plethora of applications in education, healthcare, entertainment, etc. To increase the user mobility, and to reduce the energy consumption and production cost of VR head mounted displays…

Networking and Internet Architecture · Computer Science 2020-11-19 Seyedmohammad Salehi , Abdullah Alnajim , Xiaoqing Zhu , Malcolm Smith , Chien-Chung Shen , Leonard Cimini

An intelligent decision-making system enabled by Vehicle-to-Everything (V2X) communications is essential to achieve safe and efficient autonomous driving (AD), where two types of decisions have to be made at different timescales, i.e.,…

Systems and Control · Electrical Eng. & Systems 2023-11-21 Tong Liu , Lei Lei , Kan Zheng , Xuemin , Shen

In this paper, we formulate the collaborative multi-user wireless video transmission problem as a multi-user Markov decision process (MUMDP) by explicitly considering the users' heterogeneous video traffic characteristics, time-varying…

Multimedia · Computer Science 2009-03-03 Fangwen Fu , Mihaela van der Schaar

Timely sampling and fresh information delivery are important in 6G communications. This is achieved by encoding samples into short packets/codewords for transmission, with potential decoding errors. We consider a broadcasting base station…

Information Theory · Computer Science 2023-09-13 Sumanth S Raikar , Rajshekhar V Bhat

We consider the transmission of packets across a lossy end-to-end network path so as to achieve low in-order delivery delay. This can be formulated as a decision problem, namely deciding whether the next packet to send should be an…

Networking and Internet Architecture · Computer Science 2018-12-17 Pablo Garrido , Douglas Leith , Ramon Aguero

With the phenomenal growth of the Internet of Things (IoT), Ultra Reliable Low Latency Communications (URLLC) has potentially been the enabler to guarantee the stringent requirements on latency and reliability. However, how to achieve low…

Information Theory · Computer Science 2019-03-15 Xiaoyu Zhao , Wei Chen

The demand for real-time cloud applications has seen an unprecedented growth over the past decade. These applications require rapidly data transfer and fast computations. This paper considers a scenario where multiple IoT devices update…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-12-03 Abubakr Alabbasi , Vaneet Aggarwal

Tradeoff in diversity, multiplexing, and delay in multihop MIMO relay networks with ARQ is studied, where the random delay is caused by queueing and ARQ retransmission. This leads to an optimal ARQ allocation problem with per-hop delay or…

Information Theory · Computer Science 2010-01-06 Yao Xie , Andrea Goldsmith

This paper considers the problem of reducing the broadcast decoding delay of wireless networks using instantly decodable network coding (IDNC) based device-to-device (D2D) communications. In a D2D configuration, devices in the network can…

Information Theory · Computer Science 2015-05-22 Ahmed Douik , Sameh Sorour , Tareq Y. Al-Naffouri , Hong-Chuan Yang , Mohamed-Slim Alouini
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