Characterization of power consumption in thin clients due to protocol data transmission over IEEE 802.11

Simoens, Pieter; Vankeirsbilck, Bert; Ali, Farhan Azmat; Deboosere, Lien; Turck, Filip De; Dhoedt, Bart; Demeester, Piet; Torrea-Duran, Rodolfo; Desset, Claude

doi:10.1109/wiopt.2009.5291601

Cited by 2 publications

(2 citation statements)

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“…Furthermore, they point out that in the design of the ICA protocol, responsiveness has played a more important role than the packetization overhead. In [8], we have quantified the power consumption of the wireless platform on thin client devices due to thin client protocol traffic. Although the WNIC is mostly in idle state, the results indicate that transmitting and receiving data account for up to 30% of the total WNIC power consumption, even under circumstances of low packet loss and only medium congestion.…”

Section: Related Workmentioning

confidence: 99%

“…These bandwidth savings might result in important energy savings on wireless thin clients. Based on the figures reported in [2,8], we have calculated that the bandwidth saving of 78% for smaller RTT might result in a decrease of the WNIC power consumption of 9% for wireless links with a small path loss of 60 dB and a background traffic flow of only 1 Mbps between the access Figure 13. Comparison of T resp,buf and the upstream bandwidth with and without enabling of the user event buffering mechanism.…”

Section: Static Scenario Analysismentioning

confidence: 99%

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Upstream bandwidth optimization of thin client protocols through latency‐aware adaptive user event buffering

Simoens

Vankeirsbilck

Deboosere

et al. 2010

Int J Communication

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SUMMARYThin client computing trades local processing for network bandwidth by off-loading application logic to remote servers. User input and display updates are exchanged between client and server through a thin client protocol. In a wireless device context, it is important to achieve bandwidth efficient thin client protocols because bandwidth availability is limited and the power consumption of the wireless network interface card is directly related to the amount of data that is sent and received. This paper presents and evaluates a novel client-based mechanism which is transparent to the server to reduce upstream bandwidth consumption. Typically, thin client protocols encode user input as a series of small packets, resulting in a major packetization overhead. By buffering user events at the thin client protocol layer, this overhead can be reduced. However, buffering strategies might result in increased response delays for the user. Therefore, models of the upstream bandwidth and the user perceived responsiveness of pull thin client protocols are presented and validated. These models are used in an adaptive framework, which determines the appropriate buffering time to minimize the bandwidth as much as possible without degrading the responsiveness. For lower network roundtrip times and users actively generating input, it is shown how bandwidth savings up to 78% can be achieved while keeping the average user perceived responsiveness below 150 ms.

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Section: Related Workmentioning

confidence: 99%

Section: Static Scenario Analysismentioning

confidence: 99%