Ditemukan 2 dokumen yang sesuai dengan query
Abstrak :
Cooperative communication is communications that cooperate with another user as and form a virtual array so that can balance the benefits of space diversity systems. In this paper proposed cooperative communication in the building, where two users used as the source, one user as a destination, and six user wich raised randomly as the relay. This research focus examined cross layer optimization which physical layer (example total power consumption) and network layer (example routing and traffic rate ) that influeced by congestion control. Results of examination are chosening the relay on basically of traffic rate, total power consumption, and joint oiptimization of both. And also, mean of traffic rate for source 1 is smaller than source 2 while mean of total power consumption for source 1 is bigger thatn source 2. and varian of traffic rate and total power consumption for source 1 is bigger than source 2.
620 JURTEL 14:2 (2009)
Artikel Jurnal Universitas Indonesia Library
Xiao-Hong Zhang
Abstrak :
ABSTRACT
The joint optimization of condition-based opportunistic maintenance and (0,1)-type spare part inventory policy is investigated for a two-component system. Deterioration state-space partitioning (DSSP) of the observed state and the spare part inventory state is developed to analyze all the possible maintenance requirements of the system and calculate the probabilities of the actual maintenance activities with the restriction of the inventory state, as well as the probabilities of ordering and holding of spare parts. An expression of the stationary law of the joint state and its numeric solution are deduced based on an analysis of all the possible transitions of the joint state during an inspection cycle. Further, an expected long-run cost rate model of the operation of the system under the proposed policy was developed to determine the optimal joint strategy which involved a semi-regenerative process theory. Finally, numerical experiments were performed.
Philadelphia: Taylor and Francis, 2018
658 JIPE 35:6 (2018)
Artikel Jurnal Universitas Indonesia Library