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Riku Jantti Telecommunication Engineering at University of Vaasa, Finland Seong-Lyun Kim

Joint Data Rate and Power Allocation for Lifetime Maximization in Interference Limited Ad Hoc Networks. Riku Jantti Telecommunication Engineering at University of Vaasa, Finland Seong-Lyun Kim Electrical and Electronic Engineering, Yonsei University, Seoul, Korea.

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Riku Jantti Telecommunication Engineering at University of Vaasa, Finland Seong-Lyun Kim

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  1. Joint Data Rate and Power Allocation for Lifetime Maximization in Interference Limited Ad Hoc Networks Riku Jantti Telecommunication Engineering at University of Vaasa, Finland Seong-Lyun Kim Electrical and Electronic Engineering, Yonsei University, Seoul, Korea. IEEE TWC, Vol. 5, No. 5, May 2006

  2. Outline • Introduction • Network model • Iterative algorithm for maximum lifetime routing problem • Numerical Example • Conclusion

  3. Introduction • 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

  4. Network model • Carrier-to-interference • Function of Rate

  5. Network model • Probability of transmission φijis defined on link(i,j) = Bit-energy-to-interference+noise-power-density

  6. Iterative algorithm for maximum lifetime routing problem • Transmission Energy Allocation • Transmission Time and Power Allocation • Transmission Rate Allocation

  7. Overview p1 For link(1,3) p4 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 Allocation a. Based on 1) and 2) to select the transmission rate

  8. Transmission Energy Allocation

  9. Transmission Time and Power Allocation

  10. Transmission Rate Allocation

  11. Numerical Example Ps = 50mW Pt = 800mW Pr = 400mW W = 1 MHz Γ(p) = 5 dbm

  12. Numerical Example

  13. Numerical Example

  14. Numerical Example

  15. Numerical Example

  16. Conclusion • 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

  17. Thank You

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