Rate-Splitting Methods for Interference Management in Cellular Wireless Systems
Rate-Splitting Methods for Interference Management in Cellular Wireless Systems

Author: Guangxia Zhou

Publisher: Logos Verlag Berlin GmbH

Published: 2018-11-01

Total Pages: 238

ISBN-13: 3832547843

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In this thesis, rate-splitting based interference exploitation has been investigated in order to bridge theory and practice. The results shows that conventional detection-decoding techniques cannot provide desirable results within a reasonable complexity and thereby substantially reduce interference mitigation gains. A multi-layer rate splitting scheme is proposed to deal with this obstacle. This multi-layer rate splitting scheme can approach or achieve the same maximum sum rate as that achieved by joint decoding.

Interference Mitigation Techniques for Heterogeneous Network
Interference Mitigation Techniques for Heterogeneous Network

Author: Vikram Santhanam

Publisher: LAP Lambert Academic Publishing

Published: 2013

Total Pages: 60

ISBN-13: 9783659344688

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In this book, a new frequency reuse scheme is proposed to mitigate the inter-cell interference for the future OFDM based systems. In addition, a new frequency allocation technique and power allocation methods are illustrated. This provides an efficient spectrum allocation at the edge and center of the cell to co-ordinate with Femtocells and Macrocells for better network performance. It has been observed from the results that this novel technique with the Femtocells guarantees significantly increased data-rate, increased network power efficiency, frequency reuse factor of one through-out the cell, reduced inter-cell interference and increased network capacity with simple design to meet the QoS need of users. This frequency reuse scheme provides a solution for current challenges in wireless industries by offering a simple and efficient inter-cell interference coordination (ICIC) technique for the next-generation wireless network.

Interference Mitigation in Device-to-Device Communications
Interference Mitigation in Device-to-Device Communications

Author: Masood Ur Rehman

Publisher: John Wiley & Sons

Published: 2022-03-17

Total Pages: 244

ISBN-13: 1119788811

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Explore this insightful foundational resource for academics and industry professionals dealing with the move toward intelligent devices and networks Interference Mitigation in Device-to-Device Communications delivers a thorough discussion of device-to-device (D2D) and machine-to-machine (M2M) communications as solutions to the proliferation of ever more data hungry devices being attached to wireless networks. The book explores the use of D2D and M2M technologies as a key enabling component of 5G networks. It brings together a multidisciplinary team of contributors in fields like wireless communications, signal processing, and antenna design. The distinguished editors have compiled a collection of resources that practically and accessibly address issues in the development, integration, and enhancement of D2D systems to create an interference-free network. This book explores the complications posed by the restriction of device form-factors and the co-location of several electronic components in a small space, as well as the proximity of legacy systems operating in similar frequency bands. Readers will also benefit from the inclusion of: A thorough introduction to device-to-device communication, including its history and development over the last decade, network architecture, standardization issues, and regulatory and licensing hurdles An exploration of interference mitigation in device-to-device communication underlaying LTE-A networks A rethinking of device-to-device interference mitigation, including discussions of the challenges posed by the proliferation of devices An analysis of user pairing for energy efficient device-to-device content dissemination Perfect for researchers, academics, and industry professionals working on 5G networks, Interference Mitigation in Device-to-Device Communications will also earn a place in the libraries of undergraduate, graduate, and PhD students conducting research into wireless communications and applications, as well as policy makers and communications industry regulators.

OFDM Systems for Wireless Communications
OFDM Systems for Wireless Communications

Author: Adarsh Narasimhamurthy

Publisher: Springer Nature

Published: 2022-06-01

Total Pages: 68

ISBN-13: 3031015134

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Orthogonal Frequency Division Multiplexing (OFDM) systems are widely used in the standards for digital audio/video broadcasting, WiFi and WiMax. Being a frequency-domain approach to communications, OFDM has important advantages in dealing with the frequency-selective nature of high data rate wireless communication channels. As the needs for operating with higher data rates become more pressing, OFDM systems have emerged as an effective physical-layer solution. This short monograph is intended as a tutorial which highlights the deleterious aspects of the wireless channel and presents why OFDM is a good choice as a modulation that can transmit at high data rates. The system-level approach we shall pursue will also point out the disadvantages of OFDM systems especially in the context of peak to average ratio, and carrier frequency synchronization. Finally, simulation of OFDM systems will be given due prominence. Simple MATLAB programs are provided for bit error rate simulation using a discrete-time OFDM representation. Software is also provided to simulate the effects of inter-block-interference, inter-carrier-interference and signal clipping on the error rate performance. Different components of the OFDM system are described, and detailed implementation notes are provided for the programs. The program can be downloaded here. Table of Contents: Introduction / Modeling Wireless Channels / Baseband OFDM System / Carrier Frequency Offset / Peak to Average Power Ratio / Simulation of the Performance of OFDM Systems / Conclusions

Resource Allocation in Uplink OFDMA Wireless Systems
Resource Allocation in Uplink OFDMA Wireless Systems

Author: Elias Yaacoub

Publisher: John Wiley & Sons

Published: 2012-03-13

Total Pages: 298

ISBN-13: 1118074505

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Tackling problems from the least complicated to the most, Resource Allocation in Uplink OFDMA Wireless Systems provides readers with a comprehensive look at resource allocation and scheduling techniques (for both single and multi-cell deployments) in uplink OFDMA wireless networks relying on convex optimization and game theory to thoroughly analyze performance. Inside, readers will find topics and discussions on: Formulating and solving the uplink ergodic sum-rate maximization problem Proposing suboptimal algorithms that achieve a close performance to the optimal case at a considerably reduced complexity and lead to fairness when the appropriate utility is used Investigating the performance and extensions of the proposed suboptimal algorithms in a distributed base station scenario Studying distributed resource allocation where users take part in the scheduling process, and considering scenarios with and without user collaboration Formulating the sum-rate maximization problem in a multi-cell scenario, and proposing efficient centralized and distributed algorithms for intercell interference mitigation Discussing the applicability of the proposed techniques to state-of-the-art wireless technologies, LTE and WiMAX, and proposing relevant extensions Along with schematics and figures featuring simulation results, Resource Allocation in Uplink OFDMA Wireless Systems is a valuable book for?wireless communications and cellular systems professionals and students.

Cognitive Radio Techniques
Cognitive Radio Techniques

Author: Kandeepan Sithamparanathan

Publisher: Artech House

Published: 2012

Total Pages: 396

ISBN-13: 1608072037

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Providing an in-depth treatment of the core enablers of cognitive radio technology, this unique book places emphasis on critical areas that have not been sufficiently covered in existing literature. You find expert guidance in the key enablers with respect to communications and signal processing. The book presents fundamentals, basic solutions, detailed discussions of important enabler issues, and advanced algorithms to save you time with your projects in the field. For the first time in any book, you find an adequately detailed treatment of spectrum sensing that covers nearly every aspect of the subject. Moreover, this valuable resource provides you with thorough working knowledge of localization and interference mitigation as enablers of cognitive radio technology. The book includes all the necessary mathematics, statistical and probabilistic treatments, and performance analysis to give you a comprehensive understanding of the material.

OFDM
OFDM

Author: Hermann Rohling

Publisher: Springer Science & Business Media

Published: 2011-03-22

Total Pages: 261

ISBN-13: 3642174965

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(Preliminary): The Orthogonal Frequency Division Multiplexing (OFDM) digital transmission technique has several advantages in broadcast and mobile communications applications. The main objective of this book is to give a good insight into these efforts, and provide the reader with a comprehensive overview of the scientific progress which was achieved in the last decade. Besides topics of the physical layer, such as coding, modulation and non-linearities, a special emphasis is put on system aspects and concepts, in particular regarding cellular networks and using multiple antenna techniques. The work extensively addresses challenges of link adaptation, adaptive resource allocation and interference mitigation in such systems. Moreover, the domain of cross-layer design, i.e. the combination of physical layer aspects and issues of higher layers, are considered in detail. These results will facilitate and stimulate further innovation and development in the design of modern communication systems, based on the powerful OFDM transmission technique.