Joint power-loading and cyclic prefix length optimization for OFDM-based power line communication

Wolkerstorfer, Martin; Tsiaflakis, Paschalis; Moonen, Marc; Statovci, Driton

doi:10.1109/icassp.2013.6638549

Cited by 4 publications

(10 citation statements)

References 23 publications

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“…The aforementioned issues motivated many works to analyze ISI/ICI in OFDM systems with insufficient redundancy [6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22]. Perhaps, the first attempt to analyze systematically the harmful ISI/ICI effects are the works in [6,7,23] in which preliminary results in terms of interference spectral power are presented.…”

Section: Introductionmentioning

confidence: 99%

“…The work in [13] uses the results from [10] to show it might be useful to allow the existence of ISI/ICI due to insufficient guard periods, as long as the transceiver is aware of it-via feedback mechanism of channel-state information (CSI). The authors in [18] analyze the ISI/ICI impacts on a power-line communication (PLC) system, whereas [19] optimize the redundancy length for a PLC system, allowing for the existence of controlled ISI/ICI. A similar kind of optimization is also conducted for coherent optical communications in [20].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Intersymbol and Intercarrier Interference in OFDM Transmissions Through Highly Dispersive Channels

Martins

CruznRoldan

Moonen

et al. 2019

2019 27th European Signal Processing Conference (EUSIPCO)

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This work quantifies, for the first time, intersymbol and intercarrier interferences induced by very dispersive channels in OFDM systems. The resulting achievable data rate for suboptimal OFDM transmissions is derived based on the computation of signal-to-interference-plus-noise ratio for arbitrary length finite duration channel impulse responses. Simulation results point to significant differences between data rates obtained via conventional formulations, for which interferences are supposed to be limited to two or three blocks, versus the data rates considering the actual channel dispersion.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intersymbol and Intercarrier Interference in OFDM Transmissions Through Highly Dispersive Channels

Martins

CruznRoldan

Moonen

et al. 2019

2019 27th European Signal Processing Conference (EUSIPCO)

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“…In many previous works such as [3], [4], [5], [6], [7], it has been shown that the choice of a GI length equal to the channel impulse response length is inefficient in terms of system throughput. When we insert a GI length equal to µ, the transmission rate is reduced by a factor of T0…”

Section: Introductionmentioning

confidence: 99%

Guard interval adaptation for in-home power line communication

Amis

Chonavel

et al. 2015

2015 IEEE International Symposium on Power Line Communications and Its Applications (ISPLC)

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This paper aims to analyze the choice of the guard interval (GI) length in PLC systems to optimize the achievable throughput under power and symbol error-rate (SER) constraints. In general, the GI length is chosen so that there is no interference, i.e. the GI length is greater than or equal to the channel impulse response length. However, many previous works have shown that in PLC systems, this GI choice is inefficient in terms of achievable throughput. Indeed, shorter GI evidently results in inter-symbol interference (ISI) and intercarrier interference (ICI), but the gain offered by shortened GI may exceed the loss caused by interference. In this paper, we propose a simple solution for the GI length adaptation in PLC systems to optimize the achievable throughput.

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“…In this case, by using joint coding and decoding, the system capacity is maximized by using the water-filling algorithm derived in [16]. In the absence of joint coding and decoding, the interference is considered as noise when solving the resource allocation problem [17], [18], [19], [20], [21]. In [18], the achievable throughput of PLC systems is maximized by combining the bit-loading algorithm and adaptive cyclic prefix.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, several approaches to search for the upper-bound of the achievable throughput have been studied in [19] but no practical solution of the achievable throughput maximization problem with low-complexity has been given. A solution based on the greedy approach has been developed in [25] for the multi-carrier interference channel in multi-users ADSL systems.…”

Section: Introductionmentioning

confidence: 99%

Achievable Throughput Optimization in OFDM Systems in the Presence of Interference and its Application to Power Line Networks

Amis

Chonavel

et al. 2014

IEEE Trans. Commun.

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International audienceThe aim of this paper is to study the bit-loading and power allocation problem in the presence of interference (Inter-carrier Interference (ICI) and Inter-Symbol Interference (ISI)) in Orthogonal Frequency Division Multiplexing (OFDM) systems. ISI and ICI significantly degrade the performance of OFDM systems and make the resource management optimized without the assumption of interference less efficient. To solve this problem, an initial solution based on the greedy approach is proposed in this paper. Then, several reduced complexity approaches, which yield a little degradation compared to the initial solution, have been developed. Simulation results presented in the context of Power Line Communication (PLC) show that the performance of proposed algorithms is tight with their upper bound. Moreover, these algorithms efficiently improve the system performance as compared to the constant power water-filling allocation algorithm as well as maximum power allocation algorithm

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Joint power-loading and cyclic prefix length optimization for OFDM-based power line communication

Cited by 4 publications

References 23 publications

Intersymbol and Intercarrier Interference in OFDM Transmissions Through Highly Dispersive Channels

Intersymbol and Intercarrier Interference in OFDM Transmissions Through Highly Dispersive Channels

Guard interval adaptation for in-home power line communication

Achievable Throughput Optimization in OFDM Systems in the Presence of Interference and its Application to Power Line Networks

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