TY - GEN
T1 - Mode selection for energy-efficient D2D communications in LTE-advanced networks
T2 - A coalitional game approach
AU - Akkarajitsakul, Khajonpong
AU - Phunchongharn, Phond
AU - Hossain, Ekram
AU - Bhargava, Vijay K.
PY - 2012
Y1 - 2012
N2 - We consider the problem of mode selection for device-to-device (D2D) communications in LTE-advanced networks. We propose a solution based on a coalitional game among D2D links to select their communications modes. The solution is given by three coalitions which represent the groups of D2D links using cellular mode, reuse mode, and dedicated mode of transmission. The D2D links in the same coalition cooperatively select the subchannels and use the corresponding transmission mode such that the total power is minimized while their rate requirements are satisfied. The D2D links can make a decision to leave and join a coalition based on their individual transmission costs. The individual transmission cost of each D2D link is a function of the transmission power and the price of channel occupancy which depends on the D2D link's communications mode. We find stable coalitions as the solution of the mode selection problem. The stable coalitions represent the system states in which no D2D link can change its communication mode and have lower transmission cost without making others worse off. A discrete-time Markov chain-based analysis and a distributed algorithm are presented to obtain the stable coalitions.
AB - We consider the problem of mode selection for device-to-device (D2D) communications in LTE-advanced networks. We propose a solution based on a coalitional game among D2D links to select their communications modes. The solution is given by three coalitions which represent the groups of D2D links using cellular mode, reuse mode, and dedicated mode of transmission. The D2D links in the same coalition cooperatively select the subchannels and use the corresponding transmission mode such that the total power is minimized while their rate requirements are satisfied. The D2D links can make a decision to leave and join a coalition based on their individual transmission costs. The individual transmission cost of each D2D link is a function of the transmission power and the price of channel occupancy which depends on the D2D link's communications mode. We find stable coalitions as the solution of the mode selection problem. The stable coalitions represent the system states in which no D2D link can change its communication mode and have lower transmission cost without making others worse off. A discrete-time Markov chain-based analysis and a distributed algorithm are presented to obtain the stable coalitions.
KW - Device-to-device (D2D) communications
KW - coalition formation
KW - cooperative game
KW - mode selection
UR - https://www.scopus.com/pages/publications/84873534719
U2 - 10.1109/ICCS.2012.6406196
DO - 10.1109/ICCS.2012.6406196
M3 - Conference contribution
AN - SCOPUS:84873534719
SN - 9781467320542
T3 - 2012 IEEE International Conference on Communication Systems, ICCS 2012
SP - 488
EP - 492
BT - 2012 IEEE International Conference on Communication Systems, ICCS 2012
ER -