Energy Efficient Power Control in Impulse Radio UWB Wireless Networks

Bacci, Giacomo; Luise, Marco; Poor, H. Vincent; Tulino, Antonia M.

doi:10.1109/jstsp.2007.906588

Cited by 44 publications

(61 citation statements)

References 26 publications

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“…The throughput was the first metric to be considered in the context of energy efficiency, and its use dates back to the seminal works [11], [12], and [32], in the context of CDMA networks. These studies spurred the interest for energyefficient resource allocation in wireless networks, and a throughput-based definition of energy efficiency was used in [33]- [36] proposing game-theoretic approaches for energy-efficient multiple access networks, in [37] with reference to cognitive radio systems, in [38] in conjunction with widely linear receivers, in [39] for ultrawideband systems, and in [40] for relay-based systems. -Outage capacity.…”

Section: Resource Allocationmentioning

confidence: 99%

A Survey of Energy-Efficient Techniques for 5G Networks and Challenges Ahead

Buzzi

Chih‐Lin

Klein

et al. 2016

IEEE J. Select. Areas Commun.

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711

397

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Abstract-After about a decade of intense research, spurred by both economic and operational considerations, and by environmental concerns, energy efficiency has now become a key pillar in the design of communication networks. With the advent of the fifth generation of wireless networks, with millions more base stations and billions of connected devices, the need for energy-efficient system design and operation will be even more compelling. This survey provides an overview of energy-efficient wireless communications, reviews seminal and recent contribution to the state-of-the-art, including the papers published in this special issue, and discusses the most relevant research challenges to be addressed in the future.

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Section: Resource Allocationmentioning

confidence: 99%

A Survey of Energy-Efficient Techniques for 5G Networks and Challenges Ahead

Buzzi

Chih‐Lin

Klein

et al. 2016

IEEE J. Select. Areas Commun.

Self Cite

711

397

View full text Add to dashboard Cite

show abstract

“…In [24], the non-cooperative power control game is studied in a frequency-selective environment for the uplink of an impulse-radio ultrawideband system. In this case, the problem is more challenging than single path because of the selfinterference in addition to multiple access interference and every user achieves a different SINR at the output of its Rake receiver.…”

Section: A Sisomentioning

confidence: 99%

A survey on energy-efficient communications

Belmega

Lasaulce

Debbah³

2010

2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops

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Abstract-In this paper, we review the literature on physical layer energy-efficient communications. The most relevant and recent works are mainly centered around two frameworks: the pragmatic and the information theoretical approaches. Both of them aim at finding the best transmit and/or receive policies which maximize the number of bits that can be reliably conveyed over the channel per unit of energy consumed. Taking into account both approaches, the analysis starts with the single user SISO (single-input single-output) channel, and is then extended to the MIMO (multiple-input multiple-output) and multi-user scenarios. I. INTRODUCTIONDuring the past decade, energy consumption has become an increasingly important issue in wireless networks. For instance, in the current cellular networks, the mobile terminals are equipped with relatively large screens, required to offer more and more functionalities and they need to operate at higher transmission rates for a longer period of time. At the fixed infrastructure level of these networks, the number of base stations has increased dramatically implying important energy costs. According to [2], these costs are expected to be multiplied by a factor of six within the decade 2002-2012. However, significant progress has been made in the art of designing wireless transmitters and receivers. This includes antennas and electronic circuits technology, signal processing algorithms, channel coding techniques and network protocols. The arising question is: Will technological progress be fast enough to control and decrease the energy consumption at the terminal and the network infrastructure sides? Answering such a question is a difficult task and only partial answers can be provided. For this purpose, different communication and information theoretical tools will be used. An important tool and one of the technological breakthroughs in communications is the MIMO concept (i.e., systems composed of multiple antenna terminals) [3][4] [5]. It is well known that, for a pointto-point communication, using multiple antenna terminals in full diversity mode (i.e., all the transmmit antennas are used to send the same information over the channel) allows one to decrease the transmit power while ensuring a fixed quality of transmission (e.g., the bit error rate).In this paper, we overview the literature on energy-efficient communications w.r.t. the number of bits that can be reliably conveyed over the channel per unit of energy consumed. The research on this topic has been focused on two main approaches: a pragmatic approach based on practical modulations, coding-decoding schemes, electronics and an informa-

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“…Denote by B the number of access points, and let h i,j be the real channel between the j-th user and the i-th AP; moreover, denote by a(j) the index of the AP assigned to the j-th user 11 . After chip-matched filtering and chip-rate sampling, the N -dimensional received data vector at the ℓ-th AP, say r ℓ , is written as…”

Section: Extensions To the Multi-cell Scenariomentioning

confidence: 99%

“…While the above papers consider the issue of power control assuming that a conventional matched filter is available at the receiver, the recent paper [10] considers the cross-layer problem of joint linear receiver design and power control so as to maximize the utility of each user: it is thus shown in [10] that the inclusion of receiver design in the considered game brings remarkable advantages. This same utility function is also used in [11] for energy-efficient power control in ultra-wideband (UWB) communications, while the survey paper [12] reviews recent advances in the application of a game-theoretic framework for energy-efficient resource allocation.…”

mentioning

confidence: 99%

Joint Receiver and Transmitter Optimization for Energy-Efficient CDMA Communications

Buzzi

Poor

2008

IEEE J. Select. Areas Commun.

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Abstract-This paper focuses on the cross-layer issue of joint multiuser detection and resource allocation for energy efficiency in wireless CDMA networks. In particular, assuming that a linear multiuser detector is adopted in the uplink receiver, the case considered is that in which each terminal is allowed to vary its transmit power, spreading code, and uplink receiver in order to maximize its own utility, which is defined as the ratio of data throughput to transmit power. Resorting to a game-theoretic formulation, a non-cooperative game for utility maximization is formulated, and it is proved that a unique Nash equilibrium exists, which, under certain conditions, is also Paretooptimal. Theoretical results concerning the relationship between the problems of SINR maximization and MSE minimization are given, and, resorting to the tools of large system analysis, a new distributed power control algorithm is implemented, based on very little prior information about the user of interest. The utility profile achieved by the active users in a large CDMA system is also computed, and, moreover, the centralized socially optimum solution is analyzed. Considerations on the extension of the proposed framework to a multi-cell scenario are also briefly detailed. Simulation results confirm that the proposed noncooperative game largely outperforms competing alternatives, and that it exhibits a quite small performance loss with respect to the socially optimum solution, and only in the case in which the users number exceeds the processing gain. Finally, results also show an excellent agreement between the theoretical closedform formulas based on large system analysis and the outcome of numerical experiments.

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Energy Efficient Power Control in Impulse Radio UWB Wireless Networks

Cited by 44 publications

References 26 publications

A Survey of Energy-Efficient Techniques for 5G Networks and Challenges Ahead

A Survey of Energy-Efficient Techniques for 5G Networks and Challenges Ahead

A survey on energy-efficient communications

Joint Receiver and Transmitter Optimization for Energy-Efficient CDMA Communications

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