Journal ArticleDOI
Resource allocation for device-to-device communications underlaying LTE-advanced networks
TLDR
A novel resource allocation scheme based on a column generation method for D2D communications in LTE-Advanced networks is introduced to maximize the spectrum utilization by finding the minimum transmission length in terms of time slots while protecting the cellular users from harmful interference and guaranteeing the QoS of D1D links.Abstract:
The Long Term Evolution-Advanced (LTEAdvanced) networks are being developed to provide mobile broadband services for the fourth generation (4G) cellular wireless systems. Deviceto- device (D2D) communications is a promising technique to provide wireless peer-to-peer services and enhance spectrum utilization in the LTE-Advanced networks. In D2D communications, the user equipments (UEs) are allowed to directly communicate between each other by reusing the cellular resources rather than using uplink and downlink resources in the cellular mode when communicating via the base station. However, enabling D2D communications in a cellular network poses two major challenges. First, the interference caused to the cellular users by D2D devices could critically affect the performances of the cellular devices. Second, the minimum quality-of-service (QoS) requirements of D2D communications need to be guaranteed. In this article, we introduce a novel resource allocation scheme (i.e. joint resource block scheduling and power control) for D2D communications in LTE-Advanced networks to maximize the spectrum utilization while addressing the above challenges. First, an overview of LTE-Advanced networks, and architecture and signaling support for provisioning of D2D communications in these networks are described. Furthermore, research issues and the current state-of-the-art of D2D communications are discussed. Then, a resource allocation scheme based on a column generation method is proposed for D2D communications. The objective is to maximize the spectrum utilization by finding the minimum transmission length in terms of time slots for D2D links while protecting the cellular users from harmful interference and guaranteeing the QoS of D2D links. The performance of this scheme is evaluated through simulations.read more
Citations
More filters
Dissertation
Device-to-device communication in cellular networks : multi-hop path selection and performance.
TL;DR: The concept of LTE-U (Long term evolution for Unlicensed Spectrum), which suggests that LTE can operate in the unlicensed spectrum with significant modifications to its transmission protocols, is investigated and proposes a dynamic switching strategy between D2D and CC communications in order to minimise mutual interference.
Journal ArticleDOI
An IOT based smart grid system for advanced cooperative transmission and communication
TL;DR: In this paper , the authors discuss cyber security on IOT-based infrastructure for electric power systems, which includes type of IOTs, architecture used for smart grid, and future challenges.
Posted Content
Distributed power allocation for D2D communications underlaying/overlaying OFDMA cellular networks
Andrea Abrardo,Marco Moretti +1 more
TL;DR: In this article, a distributed power allocation scheme for D2D OFDMA communications is proposed to maximize the users' sum rate subject to power constraints, which is known to be nonconvex and, as such, extremely difficult to be solved exactly.
Proceedings Article
Interference management under multi-channel for device-to-device underlaying cellular networks
TL;DR: This paper proposes the game theoretic framework to jointly optimize the throughput of the D2D communication as well as guarantee the interference to the cellular communication.
Book ChapterDOI
Performance Analysis of Cluster-Based Energy-Efficient Routing Scheme for WSN
TL;DR: The proposed cluster-based network in the WSN system improves lifetime, performance, and reliability of network and involves grouping of sensor nodes into cluster and electing cluster heads for all the clusters that further connect to the base station.
References
More filters
Journal ArticleDOI
Device-to-device communication as an underlay to LTE-advanced networks
TL;DR: Device-to-device (D2D) communication underlaying a 3GPP LTE-Advanced cellular network is studied as an enabler of local services with limited interference impact on the primary cellular network.
Journal ArticleDOI
Branch-and-Bound Methods: A Survey
Eugene L. Lawler,D. E. Wood +1 more
TL;DR: The essential features of the branch-and-bound approach to constrained optimization are described, and several specific applications are reviewed, including integer linear programming Land-Doig and Balas methods, nonlinear programming minimization of nonconvex objective functions, and the quadratic assignment problem Gilmore and Lawler methods.
Journal ArticleDOI
Resource Sharing Optimization for Device-to-Device Communication Underlaying Cellular Networks
TL;DR: The results show that by proper resource management, D2D communication can effectively improve the total throughput without generating harmful interference to cellular networks.