Spectrum pool reassignment for wireless multi-hop relay systems

Ashish Pandharipande; Chin Keong Ho

doi:10.1109/CROWNCOM.2008.4562547

Spectrum pool reassignment for wireless multi-hop relay systems

Ashish Pandharipande
, Chin Keong Ho

Signal Processing Systems

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

5 Citations (Scopus)

Abstract

We consider a wireless multi-hop relay system that operates on secondary sharing basis in licensed spectrum. The system employs OFDM-based spectrum pooling to avoid harmful interference to licensed systems. An OFDM-based spectrum pool comprises of a set of OFDM subchannels that correspond to white space spectrum regions. The proposed relay system comprises of a source node that transmits data to a destination node in multi-hops using multiple relay nodes. Communication over node pairs occurs on an available spectrum pool. At each receiving intermediate node, received data symbols are amplified, permuted and then forwarded on. Spectrum pool reassignment comprises determination of the permutation mapping at each intermediate node. We consider the problem of maximizing the system capacity by determining the optimum spectrum pool reassignment. We show that each relay can determine the optimum permutation mapping based on the effective signal to noise ratios in the previous hops and the signal to noise ratio in the next hop, while preserving system optimalify.

Original language	English
Title of host publication	Proceedings of the 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom 2008
Publisher	IEEE/LEOS
Pages	1-5
Number of pages	5
ISBN (Print)	978-1-4244-2301-9
DOIs	https://doi.org/10.1109/CROWNCOM.2008.4562547
Publication status	Published - 17 May 2008
Event	3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCom 2008) - Singapore, Singapore Duration: 15 May 2008 → 17 May 2008 Conference number: 3

Conference

Conference	3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCom 2008)
Abbreviated title	CROWNCom 2008
Country/Territory	Singapore
City	Singapore
Period	15/05/08 → 17/05/08

Keywords

Relays
OFDM
Signal to noise ratio
Spread spectrum communication
Interference constraints
Cognitive radio
Europe
Electronic mail
White spaces
Signal mapping

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10.1109/CROWNCOM.2008.4562547

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4562547

Cite this

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title = "Spectrum pool reassignment for wireless multi-hop relay systems",

abstract = "We consider a wireless multi-hop relay system that operates on secondary sharing basis in licensed spectrum. The system employs OFDM-based spectrum pooling to avoid harmful interference to licensed systems. An OFDM-based spectrum pool comprises of a set of OFDM subchannels that correspond to white space spectrum regions. The proposed relay system comprises of a source node that transmits data to a destination node in multi-hops using multiple relay nodes. Communication over node pairs occurs on an available spectrum pool. At each receiving intermediate node, received data symbols are amplified, permuted and then forwarded on. Spectrum pool reassignment comprises determination of the permutation mapping at each intermediate node. We consider the problem of maximizing the system capacity by determining the optimum spectrum pool reassignment. We show that each relay can determine the optimum permutation mapping based on the effective signal to noise ratios in the previous hops and the signal to noise ratio in the next hop, while preserving system optimalify.",

keywords = "Relays, OFDM, Signal to noise ratio, Spread spectrum communication, Interference constraints, Cognitive radio, Europe, Electronic mail, White spaces, Signal mapping",

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booktitle = "Proceedings of the 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom 2008",

publisher = "IEEE/LEOS",

note = "3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCom 2008), CROWNCom 2008 ; Conference date: 15-05-2008 Through 17-05-2008",

}

Pandharipande, A & Ho, CK 2008, Spectrum pool reassignment for wireless multi-hop relay systems. in Proceedings of the 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom 2008., 4562547, IEEE/LEOS, pp. 1-5, 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCom 2008), Singapore, Singapore, 15/05/08. https://doi.org/10.1109/CROWNCOM.2008.4562547

Spectrum pool reassignment for wireless multi-hop relay systems. / Pandharipande, Ashish; Ho, Chin Keong.
Proceedings of the 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom 2008. IEEE/LEOS, 2008. p. 1-5 4562547.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Ho, Chin Keong

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N2 - We consider a wireless multi-hop relay system that operates on secondary sharing basis in licensed spectrum. The system employs OFDM-based spectrum pooling to avoid harmful interference to licensed systems. An OFDM-based spectrum pool comprises of a set of OFDM subchannels that correspond to white space spectrum regions. The proposed relay system comprises of a source node that transmits data to a destination node in multi-hops using multiple relay nodes. Communication over node pairs occurs on an available spectrum pool. At each receiving intermediate node, received data symbols are amplified, permuted and then forwarded on. Spectrum pool reassignment comprises determination of the permutation mapping at each intermediate node. We consider the problem of maximizing the system capacity by determining the optimum spectrum pool reassignment. We show that each relay can determine the optimum permutation mapping based on the effective signal to noise ratios in the previous hops and the signal to noise ratio in the next hop, while preserving system optimalify.

AB - We consider a wireless multi-hop relay system that operates on secondary sharing basis in licensed spectrum. The system employs OFDM-based spectrum pooling to avoid harmful interference to licensed systems. An OFDM-based spectrum pool comprises of a set of OFDM subchannels that correspond to white space spectrum regions. The proposed relay system comprises of a source node that transmits data to a destination node in multi-hops using multiple relay nodes. Communication over node pairs occurs on an available spectrum pool. At each receiving intermediate node, received data symbols are amplified, permuted and then forwarded on. Spectrum pool reassignment comprises determination of the permutation mapping at each intermediate node. We consider the problem of maximizing the system capacity by determining the optimum spectrum pool reassignment. We show that each relay can determine the optimum permutation mapping based on the effective signal to noise ratios in the previous hops and the signal to noise ratio in the next hop, while preserving system optimalify.

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KW - OFDM

KW - Signal to noise ratio

KW - Spread spectrum communication

KW - Interference constraints

KW - Cognitive radio

KW - Europe

KW - Electronic mail

KW - White spaces

KW - Signal mapping

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ER -

Spectrum pool reassignment for wireless multi-hop relay systems

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Keywords

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