Delay-Energy Tradeoffs In Wireless Ad-Hoc Networks With Partial Channel State Information

    •  Brand, M., Molisch, A.F., "Delay-Energy Tradeoffs in Wireless Ad-Hoc Networks with Partial Channel State Information", IEEE Global Telecommunications Conference (GLOBECOM), November 2008, pp. 1-6.
      BibTeX TR2008-078 PDF
      • @inproceedings{Brand2008nov2,
      • author = {Brand, M. and Molisch, A.F.},
      • title = {Delay-Energy Tradeoffs in Wireless Ad-Hoc Networks with Partial Channel State Information},
      • booktitle = {IEEE Global Telecommunications Conference (GLOBECOM)},
      • year = 2008,
      • pages = {1--6},
      • month = nov,
      • issn = {1930-529X},
      • url = {}
      • }
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TR Image
Trade-off and upper bound curves for operating ranges of wireless devices. Verticle axes are placed where bounds are exact. Tighter bounds are available on these ranges and on subranges.

Given a wireless network where each link undergoes small-scale (Rayleigh) fading, we consider the problem of routing a message from a source node to a target node while minimizing energy or power expenditure given a fixed time budget, or vice versa. Given instantaneous channel state information, we develop tight hyperbolic bounds on the quantities of interest and solve the related optimizations in closed form or via lightweight computations. If only average channel state information is available, probabilistical performance measures must be introduced. We therefore develop another set of bounds that supports resource-optimal routing with a guaranteed success probability. Our results rest on novel formulations and solution methods for hyperbolic convex programs and, more generally, nonlinear multicriterion combinatorial optimization.


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    •  NEWS   GLOBECOM 2008: 6 publications by Koon Hoo Teo, Matthew Brand, Amine Maaref, Jinyun Zhang, Matthew E. Brand and Zafer Sahinoglu
      Date: November 30, 2008
      Where: IEEE Global Telecommunications Conference (GLOBECOM)
      MERL Contacts: Matthew Brand; Jinyun Zhang; Koon Hoo Teo
      • The papers "Routing with Probabilistic Delay Guarantees in Wireless Ad-Hoc Networks" by Brand, M., Maymounkov, P. and Molisch, A.F., "Delay-Energy Tradeoffs in Wireless Ad-Hoc Networks with Partial Channel State Information" by Brand, M. and Molisch, A.F., "Low-Complexity Hybrid QRD-MCMC MIMO Detection" by Peng, R., Teo, K.H., Zhang, J. and Chen, R.-R., "Adaptive Soft Frequency Reuse for Inter-cell Interference Coordination in SC-FDMA based 3GPP LTE Uplinks" by Mao, X., Maaref, A. and Teo, K.H., "Impact of Mobility on the Behavior of Interference in Cellular Wireless Networks" by Yarkan, S., Maaref, A. and Teo, K.H. and "Modified Beacon-Enabled IEEE 802.15.4 MAC for Lower Latency" by Bhatti, G., Mehta, A., Sahinoglu, Z., Zhang, J. and Viswanathan, R. were presented at the IEEE Global Telecommunications Conference (GLOBECOM).