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As the scarce spectrum resource is becoming over-crowded, cognitive radios (CRs) indicate great flexibility to improve the spectrum efficiency by opportunistically accessing the authorized frequency bands. One of the critical challenges for…

Information Theory · Computer Science 2011-03-01 Xianfu Chen , Zhifeng Zhao , Honggang Zhang

Consider a wireless network where each communication link has a minimum bandwidth quality-of-service requirement. Certain pairs of wireless links interfere with each other due to being in the same vicinity, and this interference is modeled…

Information Theory · Computer Science 2020-02-19 Ashwin Ganesan

Radio frequency (RF) energy harvesting and transfer techniques have recently become alternative methods to power the next generation of wireless networks. As this emerging technology enables proactive replenishment of wireless devices, it…

Networking and Internet Architecture · Computer Science 2016-11-15 Xiao Lu , Ping Wang , Dusit Niyato , Zhu Han

While network slicing has become a prevalent approach to service differentiation, radio access network (RAN) slicing remains challenging due to the need of substantial adaptivity and flexibility to cope with the highly dynamic network…

Networking and Internet Architecture · Computer Science 2023-08-23 Conghao Zhou , Jie Gao , Mushu Li , Xuemin Shen , Weihua Zhuang , Xu Li , Weisen Shi

With the increasing number of base stations (BSs) and network densification in 5G, interference management using link scheduling and power control are vital for better utilization of radio resources. However, the complexity of solving link…

Networking and Internet Architecture · Computer Science 2018-11-20 Shenghe Xu , Pei Liu , Ran Wang , Shivendra S. Panwar

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

This paper considers secure communication in a multiuser multiple-input single-output (MISO) downlink system with simultaneous wireless information and power transfer. We study the design of resource allocation algorithms minimizing the…

Information Theory · Computer Science 2013-06-05 Derrick Wing Kwan Ng , Robert Schober

Virtual cell optimization clusters cells into neighborhoods and performs optimized resource allocation over each neighborhood. In prior works we proposed resource allocation schemes to mitigate the interference caused by transmissions in…

Signal Processing · Electrical Eng. & Systems 2021-11-16 Michal Yemini , Elza Erkip , Andrea J. Goldsmith

We investigate beam training and allocation for multiuser millimeter wave massive MIMO systems. An orthogonal pilot based beam training scheme is first developed to reduce the number of training times, where all users can simultaneously…

Signal Processing · Electrical Eng. & Systems 2019-01-08 Xuyao Sun , Chenhao Qi , Geoffrey Ye Li

With the rapid deployment of the Internet of Things (IoT), fifth-generation (5G) and beyond 5G networks are required to support massive access of a huge number of devices over limited radio spectrum radio. In wireless networks, different…

Signal Processing · Electrical Eng. & Systems 2020-12-18 Helin Yang , Zehui Xiong , Jun Zhao , Dusit Niyato , Chau Yuen , Ruilong Deng

This work demonstrates the potential of deep reinforcement learning techniques for transmit power control in wireless networks. Existing techniques typically find near-optimal power allocations by solving a challenging optimization problem.…

Signal Processing · Electrical Eng. & Systems 2020-09-15 Yasar Sinan Nasir , Dongning Guo

In this paper, we carry-out a study of the Quality of Service (QoS) mechanism in IEEE802.11e Enhanced Distribution Coordination Function (EDCF) and how it is achieved by providing traffics with different priorities. It can perform the…

Networking and Internet Architecture · Computer Science 2016-11-18 Khaled Dridi , Nadeem Javaid , Karim Djouani , Boubaker Daachi

Random access schemes in modern wireless communications are generally based on the framed-ALOHA (f-ALOHA), which can be optimized by flexibly organizing devices' transmission and re-transmission. However, this optimization is generally…

Networking and Internet Architecture · Computer Science 2020-02-19 Nan Jiang , Yansha Deng , Arumugam Nallanathan

The problem of enhancing Quality-of-Service (QoS) in power constrained, mobile relay beamforming networks, by optimally and dynamically controlling the motion of the relaying nodes, is considered, in a dynamic channel environment. We assume…

Optimization and Control · Mathematics 2017-05-23 Dionysios S. Kalogerias , Athina P. Petropulu

In this work, we consider the radio resource allocation problem in a wireless system with various integrated functionalities, such as communication, sensing and computing. We design suitable resource management techniques that can…

Machine Learning · Computer Science 2025-05-09 Charbel Bou Chaaya , Mehdi Bennis

Future wireless systems need to support diverse big data and Internet of Things (IoT) applications with dramatically different quality of service (QoS) requirements. Novel designs across the protocol stack are required to achieve effective…

Signal Processing · Electrical Eng. & Systems 2019-04-18 Hong-Chuan Yang , Mohamed-Slim Alouini

The multi-link operation (MLO) is a key feature of the next IEEE 802.11be Extremely High Throughput amendment. Through its adoption, it is expected to enhance users' experience by improving throughput rates and latency. However, potential…

Networking and Internet Architecture · Computer Science 2022-02-28 Álvaro López-Raventós , Boris Bellalta

In shared access shaping subscriber traffic based on token bucket by ISPs wastes network resources when there are few active subscribers, because it cannot allocate excess bandwidth in the long term. To address it, traffic control schemes…

Networking and Internet Architecture · Computer Science 2014-10-06 Kyeong Soo Kim

An intelligent radar resource management is an essential building block of any modern radar system. The quality of service based resource allocation model (Q-RAM) provides a framework for profound and quantifiable decision making but lacks…

Signal Processing · Electrical Eng. & Systems 2022-03-14 Sebastian Durst , Pascal Marquardt , Stefan Brüggenwirth

In this paper, we present a new queueing model providing the accurate average system time for packets transmitted over a cognitive radio (CR) link for multiple traffic classes with the preemptive and non-preemptive priority service…

Networking and Internet Architecture · Computer Science 2014-04-04 Arash Azarfar , Jean-François Frigon , Brunilde Sansò