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Most existing work on adaptive allocation of subcarriers and power in multiuser orthogonal frequency division multiplexing (OFDM) systems has focused on homogeneous traffic consisting solely of either delay-constrained data (guaranteed…

Networking and Internet Architecture · Computer Science 2016-11-15 Meixia Tao , Ying-Chang Liang , Fan Zhang

We consider the scheduling and resource allocation problem in AP-initiated uplink OFDMA transmissions of IEEE 802.11ax networks. The uplink OFDMA resource allocation problem is known to be non-convex and difficult to solve in general.…

Networking and Internet Architecture · Computer Science 2019-06-21 Konstantinos Dovelos , Boris Bellalta

This paper investigates the optimal power allocation scheme for sum throughput maximization of non-orthogonal multiple access (NOMA) system with $\alpha$-fairness. In contrast to the existing fairness NOMA models, $\alpha$-fairness can only…

Information Theory · Computer Science 2017-08-04 Peng Xu , Kanapathippillai Cumanan

This paper proposes a novel framework of resource allocation in multi-cell intelligent reflecting surface (IRS) aided non-orthogonal multiple access (NOMA) networks, where an IRS is deployed to enhance the wireless service. The problem of…

Signal Processing · Electrical Eng. & Systems 2020-11-16 Wanli Ni , Xiao Liu , Yuanwei Liu , Hui Tian , Yue Chen

In this paper, we study the resource allocation algorithm design for downlink multicarrier transmission with a shared user equipment (UE)-side distributed antenna system (SUDAS) which utilizes both licensed and unlicensed frequency bands…

Information Theory · Computer Science 2016-11-18 Marco Breiling , Derrick Wing Kwan Ng , Christian Rohde , Frank Burkhardt , Robert Schober

In this paper, we consider distributive subband, power and rate allocation for a two-hop transmission in an orthogonal frequency-division multiple-access (OFDMA) cellular system with fixed relays which operate in decode-and-forward…

Networking and Internet Architecture · Computer Science 2009-12-08 Ying Cui , Vincent K. N. Lau , Rui Wang

This paper investigates the problem of resource allocation for joint communication and radar sensing system on rate-splitting multiple access (RSMA) based unmanned aerial vehicle (UAV) system. UAV simultaneously communicates with multiple…

Information Theory · Computer Science 2021-07-13 Yuwei Li , Wanli Ni , Hui Tian , Meihui Hua , Shaoshuai Fan

Non-orthogonal multiple access (NOMA) is a promising technology which meets the demands of massive connectivity in future wireless networks. Sparse code multiple access (SCMA) is a popular code-domain NOMA technique. The effectiveness of…

Information Theory · Computer Science 2021-02-16 Kuntal Deka , Minerva Priyadarsini , Sanjeev Sharma , Baltasar Beferull-Lozano

In this paper, we consider the problem of resource allocation in the orthogonal frequency division multiple access system with single source and M untrusted users in presence of a friendly jammer. The jammer is used to improve either the…

Information Theory · Computer Science 2019-01-14 Ravikant Saini , Abhishek Jindal , Swades De

Device-to-device (D2D) communication underlaid with cellular networks is a new paradigm, proposed to enhance the performance of cellular networks. By allowing a pair of D2D users to communicate directly and share the same spectral resources…

Information Theory · Computer Science 2017-08-04 Yi Li , M. Cenk Gursoy , Senem Velipasalar , Jian Tang

The mounting content sharing among users has resulted in a considerable rise in wireless data traffic, pressurizing the cellular networks to undergo a suitable upheaval. A competent technology of the fifth-generation networks (5G) for…

Networking and Internet Architecture · Computer Science 2018-01-23 Pimmy Gandotra , Rakesh Kumar Jha , Sanjeev Jain

We investigate in this paper the optimal power allocation in an OFDM-SDMA system when some users have minimum downlink transmission rate requirements. We first solve the unconstrained power allocation problem for which we propose a fast…

Information Theory · Computer Science 2014-11-04 Diego Perea-Vega , Andre Girard , Jean-Francois Frigon

Cooperative Rate-Splitting (CRS) strategy, relying on linearly precoded rate-splitting at the transmitter and opportunistic transmission of the common message by the relaying user, has recently been shown to outperform typical…

Signal Processing · Electrical Eng. & Systems 2020-08-06 Yijie Mao , Bruno Clerckx , Jian Zhang , Victor O. K. Li , Mohammed Arafah

Deep learning enabled semantic communication has been studied to improve communication efficiency while guaranteeing intelligent task performance. Different from conventional communications systems, the resource allocation in semantic…

Signal Processing · Electrical Eng. & Systems 2022-01-27 Chuanhong Liu , Caili Guo , Yang Yang , Jiujiu Chen

We propose a distributed bidding-aided Matern carrier sense multiple access (CSMA) policy for device-to-device (D2D) content distribution. The network is composed of D2D receivers and potential D2D transmitters, i.e., transmitters are…

Information Theory · Computer Science 2017-10-17 Derya Malak , Mazin Al-Shalash , Jeffrey G. Andrews

This paper studies interference alignment (IA) based multi-cell cooperative resource allocation for the downlink OFDMA with universal frequency reuse. Unlike the traditional scheme that treats subcarriers as separate dimensions for resource…

Information Theory · Computer Science 2011-03-17 Bin Da , Rui Zhang

We investigate energy-efficiency issues and resource allocation policies for time division multi-access (TDMA) over fading channels in the power-limited regime. Supposing that the channels are frequency-flat block-fading and transmitters…

Information Theory · Computer Science 2007-07-13 Xin Wang , Georgios B. Giannakis

In this paper, we consider the channel allocation problem for throughput maximization in cognitive radio networks with hardware-constrained secondary users. Specifically, we assume that secondary users exploit spectrum holes on a set of…

Networking and Internet Architecture · Computer Science 2014-04-09 Le Thanh Tan , Long Bao Le

This paper considers orthogonal frequency division multiple access systems with simultaneous wireless information and power transfer. We study the resource allocation algorithm design for maximization of the energy efficiency of data…

Information Theory · Computer Science 2016-11-17 Derrick Wing Kwan Ng , Ernest S. Lo , Robert Schober

In this paper, we study the resource allocation and user scheduling problem for a downlink nonorthogonal multiple access network where the base station allocates spectrum and power resources to a set of users. We aim to jointly optimize the…

Networking and Internet Architecture · Computer Science 2016-11-17 Boya Di , Lingyang Song , Yonghui Li