TY - GEN
T1 - A proposal of a minimal-state processing search algorithm for link scheduling problems in packet radio networks
AU - Tajima, S.
AU - Funabiki, N.
AU - Sugano, A.
AU - Higashino, T.
PY - 2003/1/1
Y1 - 2003/1/1
N2 - In a large scale communication network, packets are transmitted from source nodes to destinations by going through several nodes on routes connecting them, because each node usually does not have a direct link to every node in the network. To maximize the usability in the network, the problems of selecting a transmission route for each connection request and of scheduling the link activations such that the total transmission time is minimized. This paper presents a four-stage approximation algorithm for the link scheduling problem (LSP) in a packet radio network, called MIPS-LSP, a MInimal-state Processing Search algorithm for LSP It is assumed that every link activation in the network is synchronously controlled by a single clock with a fixed time interval called a time slot. The first stage of MIPS-LSP computes the lower bound on the number of time slots for a given LSP instance. The second stage generates a link compatibility graph to represent the conflicts between links to be activated simultaneously. The third stage gives the initial state for search by a greedy method. The last stage iteratively searches a solution by a minimal-state evolution method The performance of the algorithm is verified through extensive simulations using benchmarks in literature.
AB - In a large scale communication network, packets are transmitted from source nodes to destinations by going through several nodes on routes connecting them, because each node usually does not have a direct link to every node in the network. To maximize the usability in the network, the problems of selecting a transmission route for each connection request and of scheduling the link activations such that the total transmission time is minimized. This paper presents a four-stage approximation algorithm for the link scheduling problem (LSP) in a packet radio network, called MIPS-LSP, a MInimal-state Processing Search algorithm for LSP It is assumed that every link activation in the network is synchronously controlled by a single clock with a fixed time interval called a time slot. The first stage of MIPS-LSP computes the lower bound on the number of time slots for a given LSP instance. The second stage generates a link compatibility graph to represent the conflicts between links to be activated simultaneously. The third stage gives the initial state for search by a greedy method. The last stage iteratively searches a solution by a minimal-state evolution method The performance of the algorithm is verified through extensive simulations using benchmarks in literature.
KW - Approximation algorithms
KW - Communication networks
KW - Joining processes
KW - Large-scale systems
KW - Packet radio networks
KW - Processor scheduling
KW - Proposals
KW - Radio control
KW - Scheduling algorithm
KW - Usability
UR - http://www.scopus.com/inward/record.url?scp=33645825415&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33645825415&partnerID=8YFLogxK
U2 - 10.1109/SAINT.2003.1183041
DO - 10.1109/SAINT.2003.1183041
M3 - Conference contribution
AN - SCOPUS:33645825415
T3 - Proceedings - 2003 Symposium on Applications and the Internet, SAINT 2003
SP - 128
EP - 135
BT - Proceedings - 2003 Symposium on Applications and the Internet, SAINT 2003
A2 - Murai, Jun
A2 - Chang, Carl
A2 - Oie, Yuji
A2 - Helal, Sumi
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2003 Symposium on Applications and the Internet, SAINT 2003
Y2 - 27 January 2003 through 31 January 2003
ER -