A Wavelet OFDM receiver for baseband power line communications

Cruz–Roldán, Fernando; Pinto-Benel, Freddy A.; Campo, José David Osés-Del; Blanco–Velasco, Manuel

doi:10.1016/j.jfranklin.2016.02.015

Cited by 18 publications

(17 citation statements)

References 28 publications

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“…• Wavelet OFDM PHY: Following the specifications recommended by IEEE P1901, the ELT-MCM system employs 512 subcarriers with 360 active subcarriers (used for data modulation) in the range from 1.8 MHz to 28 MHz and a frequency spacing (∆ f ) of 61.03515625 kHz. For this transceiver, the performance is evaluated for the 0-ASCET, 1-ASCET and 2-ASCET [15].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…leading to a new equalizer of higher order, referred to as the L A -order ASCET, and denoted by L A -ASCET [15], [32], [33].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…It is worth noting that the proposed prototype filters have even symmetry (p[N − 1 − n] = p[n]). The standard does not provide expressions that allow designers to quickly obtain the corresponding coefficients, but in [15] it is shown that these prototype filters belong to a family of windows proposed by H. Malvar [20] which has the perfect reconstruction (PR) property in the context of filter banks.…”

Section: Filter Bank Multicarrier Transceivermentioning

confidence: 99%

“…Fig. 1 shows the block diagram of the filter bank multicarrier transceiver detailed in [15] and considered in the present paper. The baseband ELT-MCM physical layer recommended in [19] is the following transmitting filter (for the kth subband, for 0 ≤ k ≤ M − 1):…”

Section: Introductionmentioning

confidence: 99%

“…All classes of BPL devices are considered for the use of this standard, including BPL devices used for smart energy applications or applications in transportation platforms (vehicles).As medium access techniques for PLC, IEEE P1901 has promoted windowed OFDM and FBMC, referring to the latter as wavelet OFDM. This denomination is a misnomer because the recommended system is not based on wavelet, it is a multicarrier modulation (MCM) based on the Extended Lapped Transform (ELT) [15], [20]. Hereinafter, wavelet OFDM is also referred to as ELT-MCM.It is well known that one important drawback of OFDM is its insertion of redundancy, which reduces the throughput and the system capacity.…”

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confidence: 99%

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Throughput Analysis of Wavelet OFDM in Broadband Power Line Communications

2018

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Windowed orthogonal frequency-division multiplexing (OFDM) and wavelet OFDM have been proposed as medium access techniques for broadband communications over the power line network by the standard IEEE 1901. Windowed OFDM has been extensively researched and employed in different fields of communication, while wavelet OFDM, which has been recently recommended for the first time in a standard, has received less attention. This work is aimed to show that wavelet OFDM, which basically is an Extended Lapped Transform-based multicarrier modulation (ELT-MCM), is a viable and attractive alternative for data transmission in hostile scenarios, such as in-home PLC. To this end, we obtain theoretical expressions for ELT-MCM of: 1) the useful signal power, 2) the inter-symbol interference (ISI) power, 3) the inter-carrier interference (ICI) power, and 4) the noise power at the receiver side. The system capacity and the achievable throughput are derived from these. This study includes several computer simulations that show that ELT-MCM is an efficient alternative to improve data rates in PLC networks. Index TermsPower line communications (PLC), orthogonal frequency-division multiplexing (OFDM), Extended Lapped Transform-based multicarrier modulation (ELT-MCM), multicarrier transceiver, multicarrier modulation (MCM), filter bank multicarrier (FBMC), discrete cosine transform, discrete sine transform, prototype filter, IEEE 1901. DRAFT Channel partitioning methods have become part of several standards for broadband wireless and wireline communications. The idea behind these techniques is to convert a broadband frequency channel into a set of overlapping and (nearly) orthogonal frequency-flat subchannels [1]. Orthogonal Frequency Division Multiplexing (OFDM), with or without windowing, is the most widely recommended technique and employs cyclic prefix (CP) or zeros as redundant samples to carry out the channel partition [2]. Recently, filter bank multicarrier (FBMC) systems have attracted a great deal of research attention, with the difference that the partitioning is performed by means of pulse shaping, with good properties in time and frequency, with no additional redundant samples [3]. FBMC system is now proposed as an attractive alternative to OFDM as the modulation scheme of the fifth generation of wireless networks (5G) [4]-[9] . The popularity of power line communications (PLC) for smart grids, and for outdoors and in-home communication systems, has grown a great deal [10]-[17]. It can be a good solution for the 'last mile' problem, since it provides broadband communication to isolated places where other communication systems are not in place, and for the 'last inch' problem, since it implements indoor high-speed networks [18]. IEEE Std 1901 [19] defines a standard for broadband over power line (BPL) devices via electric power lines. All classes of BPL devices are considered for the use of this standard, including BPL devices used for smart energy applications or applications in transportation platforms (vehicles).As medium...

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Section: Simulation Resultsmentioning

confidence: 99%

“…leading to a new equalizer of higher order, referred to as the L A -order ASCET, and denoted by L A -ASCET [15], [32], [33].…”

Section: Simulation Resultsmentioning

confidence: 99%

Section: Filter Bank Multicarrier Transceivermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%