Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks

  title={Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks},
  author={Shuguang Cui and Andrea J. Goldsmith and Ahmad Bahai},
  journal={IEEE Journal on Selected Areas in Communications},
We consider radio applications in sensor networks, where the nodes operate on batteries so that energy consumption must be minimized, while satisfying given throughput and delay requirements. In this context, we analyze the best modulation and transmission strategy to minimize the total energy consumption required to send a given number of bits. The total energy consumption includes both the transmission energy and the circuit energy consumption. We first consider multi-input-multi-output (MIMO… 

Energy efficient routing based on cooperative MIMO techniques

  • S. CuiA. Goldsmith
  • Computer Science
    Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.
  • 2005
This work proposes and analyzes the cooperative multiple-input multiple-output (MIMO) approach for networks composed of multiple clusters of nodes and shows that the cooperative MIMO approach dramatically improves the energy-delay performance.

Energy Saving MAC for MIMO Systems

  • S. RyooS. Bahk
  • Computer Science, Business
    2009 IEEE International Conference on Communications
  • 2009
This paper proposes an Energy Saving MAC protocol in MIMO (ESMACM) systems by focusing on energy efficiency instead of capacity maximization, and finds that the capacity maximizing communication gives a different solution from the energy minimizing communication.

Energy-efficiency and transmission strategy selection in cooperative wireless sensor networks

Analysis in the wideband regime reveals that, while receive diversity introduces significant improvement in both energy efficiency and spectral efficiency, further improvement due to the transmit diversity of STBC is limited, as opposed to the superiority of the SM scheme especially for non-trivial spectral efficiency.

An Energy-Efficient Transmission Scheme for Cooperative MIMO Wireless Networks

A fast column generation algorithm along with a transmission mode generating algorithm is proposed to get rid of the complexity of having to enumerate all possible sets of scheduling links and show its efficiency on the energy consumption with a low time-complexity.

Energy-efficient cooperative beamforming in clustered wireless networks

It is shown that cooperative beamforming significantly outperforms direct communications in energy efficiency, as well as in spectral efficiency, even though a much larger amount of circuit power is consumed.

Energy-efficient protocols for wireless networks with adaptive MIMO capabilities

This paper proposes a power-controlled channel access protocol for MIMO-capable wireless LANs with two antennas per node, called E-BASIC, which extends the classic CSMA/CA access scheme by allowing for dynamic adjustment of the transmission mode and the transmission power on a per-packet basis so as to minimize the total energy consumption.

Energy efficiency of cooperative strategies in wireless sensor networks

It is shown that despite using more time slots, MFCR has the best BER performance and the longest transmission distance and the optimal energy efficient scheme selection is also derived to define which model should be used to minimize the total energy consumption.

Performance analysis of MAC protocol for cooperative MIMO transmissions in WSN

A comparison study of three cooperative MIMO schemes: beamforming (BF), STBC and spatial multiplexing (SM) where both the transmission and circuit energies are considered and it is suggested that the beamforming scheme utilising two transmit nodes results in an efficient cooperative system.

Cross-layer optimization of sensor networks based on cooperative MIMO techniques with rate adaptation

  • S. CuiA. Goldsmith
  • Computer Science
    IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, 2005.
  • 2005
This paper proposes a cooperative multiple-input multiple-output (MIMO) technique where multiple nodes within a cluster cooperate in signal transmission and reception with optimal rate and derives the best energy-delay tradeoff curve under this optimization model.



Energy-constrained modulation optimization for coded systems

  • S. CuiA. GoldsmithA. Bahai
  • Computer Science
    GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489)
  • 2003
This work shows that for both MQAM and MFSK the total energy consumption may be reduced significantly if the transmission time T/sub on/ is optimized to reduce the sum of transmission energy and circuit energy consumption.

Modulation optimization under energy constraints

In short-range applications where the circuitEnergy consumption is nonnegligible compared with the transmission energy, the total energy consumption is minimized by using the maximum system bandwidth along with an optimized transmission time T/sub on/.

Energy-constrained modulation optimization

It is shown that up to 80% energy savings is achievable over nonoptimized systems and that the benefit of coding varies with the transmission distance and the underlying modulation schemes.

A framework for energy-scalable communication in high-density wireless networks

  • R. MinA. Chandrakasan
  • Computer Science
    Proceedings of the International Symposium on Low Power Electronics and Design
  • 2002
This work introduces a framework that exposes a power-aware communication subsystem featuring variable-strength convolutional coding, an adjustable power amplifier, and a voltage-scaled processor to an application programming interface (API) that exposes an applications minimum quality constraints on the communication.

A simple transmit diversity technique for wireless communications

This paper presents a simple two-branch transmit diversity scheme that provides the same diversity order as maximal-ratio receiver combining (MRRC) with one transmit antenna, and two receive antennas.

Modulation scaling for energy aware communication systems

A new technique, called modulation scaling, is introduced, which exhibits benefits similar to those of voltage scaling and allows us to trade off energy against transmission delay and as such introduces the notion of energy awareness in communications.

Introduction to Space-Time Wireless Communications

This book is an accessible introduction to every fundamental aspect of space-time wireless communications and a powerful tool for improving system performance that already features in the UMTS and CDMA2000 mobile standards.

The Design of CMOS Radio-Frequency Integrated Circuits

This expanded and thoroughly revised edition of Thomas H. Lee's acclaimed guide to the design of gigahertz RF integrated circuits features a completely new chapter on the principles of wireless

Low voltage performance of a microwave CMOS Gilbert cell mixer

This paper demonstrates the low voltage operation of a doubly balanced Gilbert mixer fabricated in a 0.8-/spl mu/m CMOS process and operating as both a down-converter and an up-converter. As a

Digital communications

  • J. Mazo
  • Physics
    Proceedings of the IEEE
  • 1985
This month's guest columnist, Steve Bible, N7HPR, is completing a master’s degree in computer science at the Naval Postgraduate School in Monterey, California, and his research area closely follows his interest in amateur radio.