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Riku JanttiTelecommunication Engineering at University of Vaasa,
FinlandSeong-Lyun Kim
Electrical and Electronic Engineering, Yonsei University, Seoul, Korea.
IEEE TWC, Vol. 5, No. 5, May 2006
+ Introduction+ Network model+ Iterative algorithm for maximum lifetime
routing problem+ Numerical Example+ Conclusion
+ Wireless ad hoc network– Low battery capacity– High data rate– Low interference
+ Previous works– Power control scheme works on a single link– Rate adapt scheme works on a single link
+ Probability of transmissionφij is defined on link(i,j)
=
Bit-energy-to-interference+noise-power-density
+ Transmission Energy Allocation+ Transmission Time and Power Allocation+ Transmission Rate Allocation
For link(1,3)
Node 1:1) Transmission Energy Allocation
a. Chose a suitable power 2) Transmission Time and Power Allocation
a. Find the network life time
3) Transmission Rate Allocationa. Based on 1) and 2) to select the transmission rate
p1p4
+ Joint routing and Rate allocation – Maximizing the network life time
+ Increase transmission power– Lower interference – Higher data rate– For other nodes, the energy consumption is lower