[summ] 基於MPTCP的無線通訊節能方案/MPTCP-based Energy Saving Techs in Wireless Networks

1. Saving Mobile Device Energy with Multipath TCP [http://eggert.org/papers/2011-mobiarch-mptcp-saving-energy.pdf]

contribution: proposes a scheduler
to switch between 3G and Wi-Fi, in order to save the energy on mobile devices

principle: the scheduler  is derived by solving a Markov decision process (MDP) offline. The MDP-based scheduler takes two inputs:

1) Energy models for 3G and Wi-Fi, which are described as finite state machines (FSM) and related with throughput.

2) Applications models, which are parameterised by monitoring user's communication session.

2.C. Diop, G. Dugue, C. Chassot, and E. Exposito, “QoS-oriented MPTCP Extensions for Multimedia Multi-homed Systems,” in 2012 26th International Conference
on Advanced Information Networking and Applications Workshops (WAINA), 2012, pp. 1119 –1124.

motivation: Original MPTCP provides a fully reliable service, which might not necessary for multimedia applications.

contribution: extend MPTCP in order to provide
partial reliability for interactive video applications. 

註解："Partial Reliability" 是IP多媒體通訊是個重要的概念。核心思想是：there is a possibility needed tonot recover loss in order to sure QoS parameters, e.g. delay, throughput. 很多協議基於這個理念，如 selective discarding, adaptive retransmission,
etc.針對SCTP最著名的PR應用要屬 PR-SCTP，which gives a possibility for the sender to notify the receiver that certain packets should be re-transmitted.

3.K. K. Lam, J. M. Chapin, and V. W. S. Chan, “Performance analysis and optimization of multipath TCP,” in 2011 IEEE Wireless Communications and Networking
Conference (WCNC), 2011, pp. 695 –700.

contribution: estimate the optimal number of paths that maximizes efficiency.