CarrierMix: How Much Can User-side Carrier Mixing Help?

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Energy consumption for cellular communication is increasingly gaining importance in smartphone battery lifetime as the bandwidth of wireless communication and the demand for mobile traffic increase. For energy-efficient cellular communication, we tackle two energy characteristics of cellular networks: (1) transmission energy highly varies upon channel condition, and (2) transmission of a packet accompanies unnecessary tail energy waste. Under the objective of transmitting packets when the best channel is provided as well as a number of packets are accumulated, we propose a new mobile collaboration framework "CarrierMix" that aggregates smart devices across multiple heterogeneous cellular carriers. Compared to the standalone operation, even without a buffering delay, CarrierMix allows better channel and reduces more tail energy in a statistical point of view. To maximize the energy benefit while maintaining the fairness among the nodes in collaboration, we further develop a dynamic programming framework providing the optimal algorithm of CarrierMix and its approximated heuristic. Trace-driven simulations on our experimental HSPA/EVDO/LTE network traces show that CarrierMix of five devices achieves up to 42 percent of energy reduction.
Publisher
IEEE COMPUTER SOC
Issue Date
2017-01
Language
English
Article Type
Article
Keywords

ENERGY OPTIMIZATION; WIRELESS NETWORKS; PERFORMANCE

Citation

IEEE TRANSACTIONS ON MOBILE COMPUTING, v.16, no.1, pp.16 - 29

ISSN
1536-1233
DOI
10.1109/TMC.2016.2538238
URI
http://hdl.handle.net/10203/220125
Appears in Collection
EE-Journal Papers(저널논문)
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