TDM-FDM Transmultiplexer: Digital Polyphase and FFT

Bellanger, Maurice; Daguet, J.

doi:10.1109/tcom.1974.1092391

Cited by 257 publications

(71 citation statements)

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“…The standard structure, often named the polyphase network, for the implementation of the OFDM/OQAM transceiver has been first proposed in [17,18]. To make clear its comparison with the proposed alternative, we briefly recall its derivation here.…”

Section: Standard Transmitter Structurementioning

confidence: 99%

Analysis of an FBMC/OQAM scheme for asynchronous access in wireless communications

Mattera

Tanda

Bellanger

2015

EURASIP J. Adv. Signal Process.

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The OFDM/OQAM transceiver belongs to the filter-bank-based multicarrier (FBMC) family and, unlike OFDM schemes, it is particularly able to meet the requirements of the physical layer of cognitive radio networks such as high level of adjacent channel leakage ratio and asynchronous communications. The paper proposes and analyzes a new implementation structure, named frequency spreading, for the OFDM/OQAM transceiver. On flat channels, it is equivalent to the standard one in terms of input-output relations, though more complex. On multipath channels, it offers a crucial advantage in terms of equalization, which is performed in the frequency domain, leading to high performance and no additional delay. With its flexibility and level of performance, the analyzed scheme has the potential to outperform OFDM in the asynchronous access context and in cognitive radio networks.

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Section: Standard Transmitter Structurementioning

confidence: 99%

Analysis of an FBMC/OQAM scheme for asynchronous access in wireless communications

Mattera

Tanda

Bellanger

2015

EURASIP J. Adv. Signal Process.

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“…A thorough analysis of oversampled filter banks seen as frames is given in [29,61,62]. An interesting twist is to consider transmultiplexers [11], obtained by starting by a synthesis filter bank and following it with an analysis one [166]. This scheme is of great importance in practice as it is a basis for frequency-division multiplexing, OFDM, for example.…”

Section: Example 54 (Mercedes-benz Frame Cont'd)mentioning

confidence: 99%

An Introduction to Frames

Kovačević

Chebira

2007

FNT in Signal Processing

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“…There are different filter bank structures available, but the modulated filter banks are very famous since their design is simple and are easy to implement. There are various modulated filter banks, among them the Discrete Fourier Transform (DFT) polyphase filter bank [1] provides the highest computational efficiency, in some cases, higher than that of the Cosine modulated filter bank, but it is not having inherent alias cancellation structure. For M-channel perfect reconstruction uniform filter banks, the polyphase matrix of the analysis and synthesis filters should be invertible.…”

Section: Introductionmentioning

confidence: 99%