Hierarchical wireless networks: Capacity bounds using the constrained multiple-access relay channel model

Lalitha Sankaranarayanan; Gerhard Kramer; Narayan B. Mandayam

Hierarchical wireless networks: Capacity bounds using the constrained multiple-access relay channel model

Lalitha Sankaranarayanan, Gerhard Kramer, Narayan B. Mandayam

School of Engineering, Electrical & Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

A wireless ad hoc network is modeled as a three-tier hierarchical network comprised of low-power source nodes that communicate with a wired access-point via an intermediate relay node. Such a model is appropriate for hybrid ad hoc networks where cooperation between the sources may not be possible or desirable. It is shown that constraining the relay to transmit and receive in either different time slots or frequency bands for a fixed total time and bandwidth yields the same capacity bounds. The rates achieved by cooperative strategies are compared with the rates achieved by traditional multi-hopping and are shown to be substantially better than for certain channels and geometries.

Original language	English (US)
Pages (from-to)	1912-1916
Number of pages	5
Journal	Conference Record - Asilomar Conference on Signals, Systems and Computers
Volume	2
State	Published - 2004
Event	Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States Duration: Nov 7 2004 → Nov 10 2004

All Science Journal Classification (ASJC) codes

Signal Processing
Computer Networks and Communications

Cite this

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abstract = "A wireless ad hoc network is modeled as a three-tier hierarchical network comprised of low-power source nodes that communicate with a wired access-point via an intermediate relay node. Such a model is appropriate for hybrid ad hoc networks where cooperation between the sources may not be possible or desirable. It is shown that constraining the relay to transmit and receive in either different time slots or frequency bands for a fixed total time and bandwidth yields the same capacity bounds. The rates achieved by cooperative strategies are compared with the rates achieved by traditional multi-hopping and are shown to be substantially better than for certain channels and geometries.",

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AU - Sankaranarayanan, Lalitha

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AU - Mandayam, Narayan B.

PY - 2004

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N2 - A wireless ad hoc network is modeled as a three-tier hierarchical network comprised of low-power source nodes that communicate with a wired access-point via an intermediate relay node. Such a model is appropriate for hybrid ad hoc networks where cooperation between the sources may not be possible or desirable. It is shown that constraining the relay to transmit and receive in either different time slots or frequency bands for a fixed total time and bandwidth yields the same capacity bounds. The rates achieved by cooperative strategies are compared with the rates achieved by traditional multi-hopping and are shown to be substantially better than for certain channels and geometries.

AB - A wireless ad hoc network is modeled as a three-tier hierarchical network comprised of low-power source nodes that communicate with a wired access-point via an intermediate relay node. Such a model is appropriate for hybrid ad hoc networks where cooperation between the sources may not be possible or desirable. It is shown that constraining the relay to transmit and receive in either different time slots or frequency bands for a fixed total time and bandwidth yields the same capacity bounds. The rates achieved by cooperative strategies are compared with the rates achieved by traditional multi-hopping and are shown to be substantially better than for certain channels and geometries.

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JO - Conference Record - Asilomar Conference on Signals, Systems and Computers

JF - Conference Record - Asilomar Conference on Signals, Systems and Computers

Y2 - 7 November 2004 through 10 November 2004

ER -

Hierarchical wireless networks: Capacity bounds using the constrained multiple-access relay channel model

Abstract

All Science Journal Classification (ASJC) codes

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