Paper Info
Title
Packet-Combining Demodulation Scheme For Cooperative Mimo-Ofdm Transmission
Abstract
This paper describes a demodulation scheme employing packet combining for packet-based cooperative multi-input multiple-output with orthogonal frequency division multiplexing (MIMO-OFDM). In this paper, we consider the simplified cooperative MIMO-OFDM transmission model based on a two-hop relay network. The proposed demodulation scheme combines e packet signals of different transmit periods. After combining, e employ maximum likelihood detection (MLD) to separate the multiplexed sub-streams. We consider the L = 2 case: i.e. the first transmit period and the second transmit period are used. Because the source-terminal and relay-terminal are located in different positions, the proposed scheme utilizes the difference between the MIMO channel matrix of the first transmit period and that of the second transmit period. As a basic performance comparison, and assuming ideal link performance between source-terminal and relay-terminal and error-free relay processing, we describe a packet error rate (PER) performance comparison. The results confirm that the proposed packet-combining scheme yields relay transmission with an approximately 1.1 dB improvement in E-b/N-0 over direct transmission without the packet combining scheme.
Year
DOI
Venue
2007
10.1109/VETECF.2007.157
2007 IEEE 66TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5
Keywords
Field
DocType
cooperative transmission, relay network, MIMO-OFDM, packet combining, MLD
Demodulation,Computer science,Network packet,Transmission delay,Electronic engineering,Multiplexing,Orthogonal frequency-division multiplexing,Relay,Cooperative MIMO,Bit error rate
Conference
ISSN
Citations 
PageRank 
1550-2252
2
0.43
References 
Authors
7
4
Name
Order
Citations
PageRank
Takeshi Onizawa13911.20
Yusuke Asai25415.85
Takeo Ichikawa3387.89
Hiroshi Kazama441.55