Efficient OFDM-based WLAN-multicast with feedback aggregation, power control and rate adaptation

Miroll, Jochen; Herfet, Thorsten

doi:10.1016/j.comcom.2012.09.001

Cited by 4 publications

(4 citation statements)

References 35 publications

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“…In [24], the authors propose a combination of LBP with adaptive transmission rate, relying on the feedback from the stations and combined with a CTS-to-Self so that the multicast receivers will be aware of any pending transmission. Authors in [25] define a hybrid model that combines an LBP approach, adaptive rate transmission and tuned power control based on the positive and negative feedback jamming ratio.…”

Section: Related Workmentioning

confidence: 99%

Performance evaluation of the IEEE 802.11aa multicast mechanisms for video streaming

Oliva

Serrano

Salvador

et al. 2013

2013 IEEE 14th International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)

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Video traffic is foreseen to account for the majority of the Internet traffic in the near future. While the demand of video transmission keeps growing, the vast majority of wireless equipment deployed in the home environment, based on IEEE 802.11, cannot satisfy the amount of bandwidth that the video applications require. In order to cope with the increasing demand of multimedia traffic, the IEEE 802.11aa Task Group has recently standardized new mechanisms to allow efficient and robust transmission of multicast flows in Wireless LAN. However, the standard leaves open the choice of which one to use for a given scenario. In this paper, we explore the new mechanisms introduced by the 802.11aa Task Group, providing insights of the new choices for handling group addressed frames, by carrying out extensive simulations. Our results highlight the various trade-offs each mechanism has in terms of robustness, resource consumption and complexity, and provide a set of recommended guidelines for their use.

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Section: Related Workmentioning

confidence: 99%

Performance evaluation of the IEEE 802.11aa multicast mechanisms for video streaming

Oliva

Serrano

Salvador

et al. 2013

2013 IEEE 14th International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)

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“…CR technology allows devices to sense the spectrum, and adaptively bit load and allocate transmit power [10], [16], [17]. The devices use CR technology, and a simulation test bed of this paper implements a WiMedia Alliance physical layer system, namely the multiband orthogonal frequency-division multiplexing ultrawideband (MB-OFDM UWB) system [18].…”

Section: Simulation Test Bed and Problem Statementmentioning

confidence: 99%

“…Because the lower bound for λ(k) is 0, we can obtain a lower bound for (15) and (16). The desired operational behavior of error exponent approximation is obtained provided by the following design rules and assumptions (i-iv), which provide bounded inputs and outputs: 1) Restriction in (15) provides acceptable oscillation magnitude in calculation of α o (k) due to low sensitivity to R t (k).…”

Section: Power Control Ber-tpc and Comparative Pid Algorithmsmentioning

confidence: 99%

“…The desired operational behavior of error exponent approximation is obtained provided by the following design rules and assumptions (i-iv), which provide bounded inputs and outputs: 1) Restriction in (15) provides acceptable oscillation magnitude in calculation of α o (k) due to low sensitivity to R t (k). 2) Assumption: (15) and (16) are always true due to channel diversity and optimal channel switching in OFDM. As BER on one channel decreases, another channel may be switched too, depending on BER and other criteria.…”

Section: Power Control Ber-tpc and Comparative Pid Algorithmsmentioning

confidence: 99%

See 1 more Smart Citation

A Closed-Loop Transmission Power Control System Using a Nonlinear Approximation of Power-Time Curve

Mayers

Benavidez

Raju

et al. 2015

IEEE Systems Journal

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In wireless communication networks, it is desirable to achieve energy efficiency, while maintaining quality of service. Overall, energy efficiency can be achieved by minimizing the power output for each communication device. This paper presents a novel energy-saving adaptive transmit power control (TPC) algorithm based on bit error rate (BER) feedback (BER-TPC) that outperforms conventional approaches based on signal-tointerference-plus-noise ratio (SINR) feedback (SINR-TPC). It is a distributed algorithm deployed in both transmitting and receiving devices that can be applied for various wireless network topologies and protocols. This paper addresses the power efficiency of adaptive TPC, in terms of reduced total transmit power of the network by smoothing transmit power transients during adaptive iterations. It is achieved using a distributed closed-loop power control system that applies heuristically estimated dual-rate power adjustments during adaptive iterations. Because the proposed system uses a mathematical formula for power adjustment, operational bounds for stability can be provided using simple analysis. It is demonstrated that the proposed system provides adequate tradeoff between performance and complexity, in terms of reduction in sensitivities and better tracking performance in following the desired reference power curves used in the simulations. Case scenarios are simulated demonstrating approximately 1.39-dB transmit power savings compared to conventional methods.Index Terms-Cognitive radio (CR), energy efficiency, interference avoidance (IA), quadratic approximator, transmission power control (TPC).

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On error correction based on feedback jamming in OFDM-based wireless MBMS systems

Miroll

Herfet

2012

2012 IEEE Consumer Communications and Networking Conference (CCNC)

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Efficient OFDM-based WLAN-multicast with feedback aggregation, power control and rate adaptation

Cited by 4 publications

References 35 publications

Performance evaluation of the IEEE 802.11aa multicast mechanisms for video streaming

Performance evaluation of the IEEE 802.11aa multicast mechanisms for video streaming

A Closed-Loop Transmission Power Control System Using a Nonlinear Approximation of Power-Time Curve

On error correction based on feedback jamming in OFDM-based wireless MBMS systems

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