Outage Probability Analysis of HANs in Multiuser Downlink Scenario for Smart Grid Communications
Due to the importance of reliable communications in smart grid, this paper evaluates the outage probability of HANs in multiuser downlink scenario. The probability density function (PDF) of the signal to interference and noise ratio (SINR) for each user i
- PDF / 213,533 Bytes
- 8 Pages / 439.37 x 666.142 pts Page_size
- 51 Downloads / 209 Views
Outage Probability Analysis of HANs in Multiuser Downlink Scenario for Smart Grid Communications Zhuo Li and Qilian Liang
Abstract Due to the importance of reliable communications in smart grid, this paper evaluates the outage probability of HANs in multiuser downlink scenario. The probability density function (PDF) of the signal to interference and noise ratio (SINR) for each user in the HAN is derived from the amplitude distribution property of the classic indoor Saleh-Valenzuela (S-V) channel. The numerical results are obtained by Monte-Carlo simulation and are furthermore compared with those of ordinary multiuser downlink without interference cancelation and WiFi Direct techniques. The comparisons indicate the by applying these two techniques, the outage performance is greatly improve, namely, the reliability of downlink communications in HANs for smart grid is enhanced. Keywords Outage probability • Home Area Networks (HANs) • Saleh-Valenzuela (S-V) channel • Smart Grid Communicaitons
6.1
Introduction
Modernization of the electric power grid, which is considered as Smart Grid, is central to worldwide efforts to increase reliability and energy efficiency, transition to renewable sources of energy, reduce greenhouse gas emissions, and build a sustainable economy that ensures prosperity for future generations. A typical smart grid communication system consists of an advanced metering infrastructure (AMI) which provides near real-time monitoring of power usage and create a two-way network between advanced meters and utility business systems, enabling collection and distribution of information to customers and other parties,
Z. Li (*) • Q. Liang Department of Electrical Engineering, University of Texas of Arlington, 416 Yates St., Arlington, TX 76019, USA e-mail: [email protected]; [email protected] Q. Liang et al. (eds.), Communications, Signal Processing, and Systems, Lecture Notes in Electrical Engineering 202, DOI 10.1007/978-1-4614-5803-6_6, # Springer Science+Business Media New York 2012
55
56
Z. Li and Q. Liang
Fig. 6.1 Communications of a HAN in smart grid Printer Monitor
Rechargeable Car
Thermostat
Fax
Smart Meter
PC
such as the competitive retail supplier or the utility itself. These advanced metering networks are of a multi-tier communication infrastructure that includes: home area network (HAN), which is used to gather sensor information from a variety of devices within the home, and optionally send control information to these devices to better control energy consumption, and provides access to in-home appliances, as shown in Fig. 6.1; neighborhood area network (NAN) to connect the smart meters to the local access points; and a wide area network (WAN) to connect the grid to the core utility system [2, 11]. We can see from Fig. 6.1 that in a HAN of Smart Grid, the smart meter is in charge of gathering power usage data and status from the utilities within the home, and also distributing power information like prices and control signals to the utilities. The reliability of the communication
Data Loading...
