Bandwidth Monitoring in Multi-Rate 802.11 WLANs with Elastic Traffic Awareness

Rossi, Claudio; Casetti, Claudio; Chiasserini, Carla-Fabiana

doi:10.1109/glocom.2011.6133774

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…Traffic prediction is one of the major issues in measurement-based network control. An accurate prediction of the traffic load in the next time interval helps to provide a high quality of service (QoS) for multimedia applications [ 21 ] to improve resource allocation for cognitive radio systems [ 22 ] and to assist in capacity planning for Wi-Fi networks [ 23 ]. The traffic-related time series prediction problem has been extensively explored in both Ethernet and WiFi networks with different applications [ 23 , 24 ].…”

Section: Related Workmentioning

confidence: 99%

Receiver-Initiated Handshaking MAC Based on Traffic Estimation for Underwater Sensor Networks ‡

Yuan

Luo

et al. 2018

Sensors

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In underwater sensor networks (UWSNs), the unique characteristics of acoustic channels have posed great challenges for the design of medium access control (MAC) protocols. The long propagation delay problem has been widely explored in recent literature. However, the long preamble problem with acoustic modems revealed in real experiments brings new challenges to underwater MAC design. The overhead of control messages in handshaking-based protocols becomes significant due to the long preamble in underwater acoustic modems. To address this problem, we advocate the receiver-initiated handshaking method with parallel reservation to improve the handshaking efficiency. Despite some existing works along this direction, the data polling problem is still an open issue. Without knowing the status of senders, the receiver faces two challenges for efficient data polling: when to poll data from the sender and how much data to request. In this paper, we propose a traffic estimation-based receiver-initiated MAC (TERI-MAC) to solve this problem with an adaptive approach. Data polling in TERI-MAC depends on an online approximation of traffic distribution. It estimates the energy efficiency and network latency and starts the data request only when the preferred performance can be achieved. TERI-MAC can achieve a stable energy efficiency with arbitrary network traffic patterns. For traffic estimation, we employ a resampling technique to keep a small computation and memory overhead. The performance of TERI-MAC in terms of energy efficiency, channel utilization, and communication latency is verified in simulations. Our results show that, compared with existing receiver-initiated-based underwater MAC protocols, TERI-MAC can achieve higher energy efficiency at the price of a delay penalty. This confirms the strength of TERI-MAC for delay-tolerant applications.

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Section: Related Workmentioning

confidence: 99%

Receiver-Initiated Handshaking MAC Based on Traffic Estimation for Underwater Sensor Networks ‡

Yuan

Luo

et al. 2018

Sensors

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“…Similarly to the mechanism we described in [31], [32], every measurement period, for each active node 1 k the GW computes a running average of the uplink (UL) throughput for all elastic and inelastic flows, denoted by η u k and ν u k , respectively. Likewise, the GW computes a running average of its own downlink (DL) throughput for both the elastic and inelastic traffic it handles for each node k, denoted by η d k and ν d k , respectively.…”

Section: A Preliminariesmentioning

confidence: 99%

Cooperative Energy-Efficient Management of Federated WiFi Networks

Rossi

Casetti

Chiasserini

et al. 2015

IEEE Trans. on Mobile Comput.

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The proliferation of overlapping, always-on IEEE 802.11 Access Points (APs) in urban areas can cause inefficient bandwidth usage and energy waste. Cooperation among APs could address these problems by allowing underused devices to hand over their wireless stations to nearby APs and temporarily switch off, while avoiding to overload a BSS and thus offloading congested APs. The federated house model provides an appealing backdrop to implement cooperation among APs. In this paper, we outline a distributed framework that assumes the presence of a multipurpose gateway with AP capabilities in every household. Our framework allows cooperation through the monitoring of local wireless resources and the triggering of offloading requests toward other federated gateways. Our simulation results show that, in realistic residential settings, the proposed framework yields an energy saving between 45% and 86% under typical usage patterns, while avoiding congestion and meeting user expectations in terms of throughput. Furthermore, we show the feasibility and the benefits of our framework with a real test-bed deployed on commodity hardware.

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“…Again, we consider an IEEE 802.11 BSS managed by an AP capable of monitoring local wireless resources at the MAC layer. As in [17,18] during each measurement period, the AP computes: average size of the frame payload (P ), maximum payload size (P max ), average data rate for data frames and for ACKs, average PER (p e ), and number of active WSs within the BSS (N ). The AP considers a node in the BSS (either itself or a WS) to be active if the node has successfully transmitted at least one data frame within the last measurement period.…”

Section: Computation Of the Saturation Throughputmentioning

confidence: 99%

A Passive Solution for Interference Estimation in WiFi Networks

Rossi

Casetti

Chiasserini

2014

Ad-Hoc, Mobile, and Wireless Networks

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Identifying the cause of an underperforming WLAN can be challenging due to the presence of a plethora of devices and networks operating in the ISM band. Such devices cause electromagnetic interference that can potentially undermine the throughput of residential and enterprise WiFi networks. In this paper, we propose an interference estimation and monitoring technique for 802.11 Access Points that can be implemented without specialized hardware and without any modification to wireless stations. We validate our technique with commercial hardware, evaluating its accuracy with different types of interferers.

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Bandwidth Monitoring in Multi-Rate 802.11 WLANs with Elastic Traffic Awareness

Cited by 7 publications

References 10 publications

Receiver-Initiated Handshaking MAC Based on Traffic Estimation for Underwater Sensor Networks ‡

Receiver-Initiated Handshaking MAC Based on Traffic Estimation for Underwater Sensor Networks ‡

Cooperative Energy-Efficient Management of Federated WiFi Networks

A Passive Solution for Interference Estimation in WiFi Networks

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