A virtual MIMO path-time code for cognitive ad hoc networks

I. Wei Lai; Chia Han Lee; Kwang Cheng Chen

doi:10.1109/LCOMM.2012.112012.121868

A virtual MIMO path-time code for cognitive ad hoc networks

I. Wei Lai^*
, Chia Han Lee
, Kwang Cheng Chen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Cognitive radio networks (CRNs) consisting of opportunistic links greatly elevate the networking throughput per bandwidth in future wireless communications. In this letter, we show that by encoding a data packet into several coded packets and transmitting in various time slots, the ene-to-end transmission in the CRN can be equivalently formulated as a physical-layer multiple-input multiple-output (MIMO) communication problem. Two coding schemes are proposed in such a virtual MIMO scenario to enhance the end-to-end communication reliability by exploiting the path diversity. The closed-form expression of the theoretical error rate analysis validates that the proposed path-time codes can significantly improve the error rate performance.

Original language	English
Article number	6362128
Pages (from-to)	4-7
Number of pages	4
Journal	IEEE Communications Letters
Volume	17
Issue number	1
DOIs	https://doi.org/10.1109/LCOMM.2012.112012.121868
Publication status	Published - 2013
Externally published	Yes

Keywords

Multiple-input multiple-output (MIMO)
ad hoc network
cognitive radio network (CRN)
path-time code
space-time code

ASJC Scopus subject areas

Modelling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

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10.1109/LCOMM.2012.112012.121868

Cite this

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AB - Cognitive radio networks (CRNs) consisting of opportunistic links greatly elevate the networking throughput per bandwidth in future wireless communications. In this letter, we show that by encoding a data packet into several coded packets and transmitting in various time slots, the ene-to-end transmission in the CRN can be equivalently formulated as a physical-layer multiple-input multiple-output (MIMO) communication problem. Two coding schemes are proposed in such a virtual MIMO scenario to enhance the end-to-end communication reliability by exploiting the path diversity. The closed-form expression of the theoretical error rate analysis validates that the proposed path-time codes can significantly improve the error rate performance.

KW - Multiple-input multiple-output (MIMO)

KW - ad hoc network

KW - cognitive radio network (CRN)

KW - path-time code

KW - space-time code

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A virtual MIMO path-time code for cognitive ad hoc networks

Abstract

Keywords

ASJC Scopus subject areas

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