Data Transmission Strategy for Wireless Sensor Network Based on Vir-tual MIMO

Chenwei Feng

doi:10.1051/matecconf/20152201022

Abstract

Virtual multiple input multiple output (MIMO) technology has been widely researched in the aspect of energy conservation for wireless sensor network (WSN) communication. In this this paper, data transmission for the entire network based on virtual MIMO WSN structure is studied, combined with clustering and multi-hop transmission mode. Each cluster head (CH) is formed according to the clustering algorithm, and the data is transmitted to the adjacent CH by cooperative communication mode. The circuit energy consumption and the transmission energy consumption are both considered in our model, so the minimum inter-cluster transmission energy consumption is obtained, and the optimal path to the sink node is obtained. The proposed strategy does not need the receiver’s collaboration to avoid the complexity of the receiver; meanwhile more energy consumption of the network is saved from the perspective of the network life cycle. The simulation results show that the proposed strategy can reduce more energy consumption and prolong the network life cycle.

Highlights

In recent years, virtual multiple input multiple output (MIMO) technology has been paid increasing attention in the industry due to its high energy efficiency [1]
The virtual MIMO technology is first introduced to wireless sensor network (WSN) in this paper [2], which shows that over certain distance ranges the total energy consumption can be reduced compared with the single input single output (SISO) transmission mode; the data is coded at transmitter side using the space-time block code (STBC); the influence on energy consumption over constellation size or distance is analyzed, but the energy consumption is still larger without using multi-hop transmission
This paper proposes a data transmission strategy for WSN based on virtual MIMO by considering the total energy consumption consisting of transmission energy consumption and circuit energy consumption comprehensively

Summary

INTRODUCTION

Virtual MIMO technology has been paid increasing attention in the industry due to its high energy efficiency [1]. The virtual MIMO technology is first introduced to WSN in this paper [2], which shows that over certain distance ranges the total energy consumption can be reduced compared with the single input single output (SISO) transmission mode; the data is coded at transmitter side using the space-time block code (STBC); the influence on energy consumption over constellation size or distance is analyzed, but the energy consumption is still larger without using multi-hop transmission. The energy consumption is optimized in this paper [4] based on virtual MIMO technology by optimizing the constellation size, and the first sensor node death time is delayed. This paper proposes a data transmission strategy for WSN based on virtual MIMO by considering the total energy consumption consisting of transmission energy consumption and circuit energy consumption comprehensively.

WSN model based on virtual MIMO

Data transmission strategy

ENERGY CONSUMPTION ANALYSIS

Text and indenting

CONCLUSIONS