A Novel Delay Analysis for Polling Schemes with Power Management Under Heterogeneous Environments
This paper studies the delay performance of IEEE 802.11 PCF with power saving under heterogeneous environments (particularly the heterogeneous sleeping interval). We propose applying the classic pure limited service queuing system to analyze the mean and
- PDF / 748,209 Bytes
- 13 Pages / 439.37 x 666.142 pts Page_size
- 15 Downloads / 167 Views
2
Faculty of Information Technology, Macau University of Science and Technology, Macau, China [email protected], [email protected] School of Information Science and Engineering, Qufu Normal University, Rizhao, Shandong 276826, China [email protected] 3 Guilin University of Electronic Technology, Guilin 541004, China {zhaofeng,wang}@guet.edu.cn
Abstract. This paper studies the delay performance of IEEE 802.11 PCF with power saving under heterogeneous environments (particularly the heterogeneous sleeping interval). We propose applying the classic pure limited service queuing system to analyze the mean and variance of the total delay without developing a new analysis model. Compared to the related works, our method is simple and scalable, while our results are general. Simulations show that our analytical results are very accurate for both homogeneous and heterogeneous environments.
Keywords: 802.11
1
· PCF · Power saving · Queueing analysis
Introduction
With the growing popularity of IEEE 802.11 wireless LANs (WLANs), various types of heterogeneous devices (laptops, smartphones, tablets, sensors, actuators etc.) are being deployed wherein. The heterogeneity of these devices implies the heterogeneity of their traffic, their application requirements, and their power saving modes. In this paper, we are concerned with the delay performance of IEEE 802.11 PCF network with power saving [1] under heterogeneous environments (particularly heterogeneous sleeping intervals). The PCF protocol with power saving is a very basic and important contention-free protocol. It has been widely extended to IEEE 802.11 HCCA [2] and the latest 802.11ah protocol [3]. Despite the growing popularity, the delay performance of PCF with power saving are worth further studying. Most This work is partially supported by Macao Science and Technology Development Fund under Grant (No. 013/2014/A1 and No. 104/2014/A3) and the NSF of China under Grant 61373027 and NSF of Shandong Province under Grant ZR2012FM023. c Springer International Publishing Switzerland 2016 Q. Yang et al. (Eds.): WASA 2016, LNCS 9798, pp. 401–413, 2016. DOI: 10.1007/978-3-319-42836-9 36
402
L. Feng et al.
related works [5,6,9,10] focus on PCF without power saving, assume homogenous traffic, and evaluate the performance via simulation. The authors in [9] investigated via simulation the throughput performance of PCF. The authors in [10] presented a comparison study via simulation for four polling schemes including PCF. The authors in [5] analyzed the throughput, expected channel access delay, and frame loss for PCF, but ignored the total delay (including the channel access delay, frame transmission time, ACK time, and waiting delay), where the channel access delay of a frame is the time interval between when the frame reaches the head of the MAC queue and when the frame starts being transmitted. Among all related work, [6] is the most relevant to ours. In this study, the author develop an analytical framework to study the total delay for PCF with power saving in homogeneous e
Data Loading...
