Impact of Radio Resource Allocation and Pulse Shaping on Papr of SC-FDMA Signals

Huang, Gillian; Nix, Andrew R; Armour, Simon

doi:10.1109/pimrc.2007.4394297

Cited by 34 publications

(16 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The frequency domain symbols are then mapped onto a set of user-dependent subcarriers [10]. The result of the subcarrier mapping is the set of complex subcarrier amplitudes, where N of the amplitudes are non-zero.…”

Section: Overview Of Sc-fdma System Modelmentioning

confidence: 99%

“…In DFDMA, the RU for each user is a set of interleaved subcarriers across the available transmission band. DFDMA is robust against frequency selective fading since it better exploits the available frequency diversity [10]. In LFDMA, the RU for each user is a set of adjacent subcarriers.…”

Section: Overview Of Sc-fdma System Modelmentioning

confidence: 99%

“…LFDMA can potentially achieve multiuser diversity if for each user the localized section of allocated bandwidth experiences high channel gain. This form of multiuser diversity requires independent frequency selective fading per user combined with intelligent radio resource unit allocation [10]. In the distributed subcarrier mapping mode, DFT outputs of the input data are allocated over the entire bandwidth with zeros occupying in unused subcarriers, whereas consecutive subcarriers are occupied by the DFT outputs of the input data in the localized subcarrier mapping mode.…”

Section: Overview Of Sc-fdma System Modelmentioning

confidence: 99%

See 2 more Smart Citations

SC-FDMA based systems to Reduce PAPR by using a Modified Companding Scheme

Singh¹,

Pardeep²,

Prasad³

2014

IJCA

View full text Add to dashboard Cite

The 3rd generation partnership project (3GPP) long term evolution (LTE) standard uses single carrier frequency division multiple access (SCFDMA), scheme for the uplink transmissions and orthogonal frequency division multiplexing access (OFDMA) in downlink. SCFDMA makes use of single carrier modulation and frequency domain equalization, it is a technique that has similar performance and essentially the same overall complexity as those of OFDM, But in OFDMA high peak-to-average power ratio (PAPR) is a major drawback. An outstanding advantage of SC-FDMA is its lower PAPR due to its single carrier structure. In this paper, we analyze the PAPR of SC-FDMA signals with pulse shaping. We analytically derive the time domain SC-FDMA signals and numerically compare PAPR characteristics using the complementary cumulative distribution function (CCDF) of PAPR. The results show that SC-FDMA signals indeed have lower PAPR compared to those of OFDMA. Comparing the two forms of SC-FDMA, we find that localized FDMA (LFDMA) has higher PAPR than interleaved FDMA (IFDMA) but somewhat lower PAPR than OFDMA. Also noticeable is the fact that pulse shaping increases PAPR. To reduce the PAPR, we propose an efficient Kalman filter based PAPR reduction algorithm.

show abstract

Section: Overview Of Sc-fdma System Modelmentioning

confidence: 99%

Section: Overview Of Sc-fdma System Modelmentioning

confidence: 99%

Section: Overview Of Sc-fdma System Modelmentioning

confidence: 99%

See 1 more Smart Citation

SC-FDMA based systems to Reduce PAPR by using a Modified Companding Scheme

Singh¹,

Pardeep²,

Prasad³

2014

IJCA

View full text Add to dashboard Cite

show abstract

“…In practical systems, the user allocated subcarriers that are grouped into basic units called Resource Blocks (RB) [10]. Considering that the number of resource blocks allocated to each user affects the PAPR [11], we generated the results for different number of resource blocks per user. Figures 3 and 4 show the CCDF of PAPR for OFDMA, SC-FDMA and MC-LDSMA with one RB and three RBs per user, respectively.…”

Section: A Papr Comparisonmentioning

confidence: 99%

Low Density Spreading for next generation multicarrier cellular systems

Al-Imari

Imran

Tafazolli

2012

2012 International Conference on Future Communication Networks

View full text Add to dashboard Cite

Abstract-Multicarrier-Low Density Spreading Multiple Access (MC-LDSMA) is a promising technique for high data rate mobile communications. In this paper, the suitability of using MC-LDSMA in the uplink for next generation cellular systems is investigated. The performance of MC-LDSMA is evaluated and compared with current multiple access techniques, OFDMA and SC-FDMA. Specifically, Peak to Average Power Ratio (PAPR), Bit Error Rate (BER), spectral efficiency and fairness are considered as performance metrics. The link and system-level simulation results show that MC-LDSMA has significant performance improvements over SC-FDMA and OFDMA. It is shown that using MC-LDSMA can significantly improve the system performance in terms of required transmission power, spectral efficiency and fairness among the users.

show abstract

“…Prior to transmitting the modulated symbols, pulse shaping is required to bandlimit the transmitted signal in OFDM-based systems [2,7]. However, pulse shaping to limit the frequency bandwidth enlarges the PAPR of the transmitted signals, resulting in a trade-off between PAPR and bandwidth reduction.…”

Section: Introductionmentioning

confidence: 99%

PAPR reduction by pulse shaping using Nyquist linear combination pulses

Azurdia-Meza

Lee

2012

IEICE Electron. Express

View full text Add to dashboard Cite

Peak-to-average power ratio (PAPR) plays an important role in the design of wireless communication systems because a high PAPR decreases the efficiency of the power amplifier. A new family of Nyquist pulses was derived by applying a linear combination between two Nyquist pulses. The proposed Nyquist pulses are utilized for pulse shaping to reduce PAPR. The investigated pulses are characterized by a new design parameter (p), giving an additional degree of freedom to minimize PAPR for a given roll-off factor α. While keeping the same bandwidth, the frequency responses of the proposed filters are unique with different values of the parameter p. Simulations showed that the optimum proposed pulse shaping filters provide better performance in PAPR reduction compared to those of the RC filter and other existing filters evaluated in various systems. Keywords: Nyquist's first criterion, peak-to-average power ratio (PAPR), power amplifier Classification: Microwave and millimeter wave devices, circuits, and systems References[1] J. Choi, D. Kang, D. Kim, J. Park, B. Jin, and B. Kim, "Power Amplifiers and Transmitters for Next Generation Mobile Handsets," J. Semiconductor Technology and Science, vol. 9, no. 4, pp. 249-256, Dec. 2009. [2] H. G. Myung, J. Lim, and D. J. Goodman, "Single carrier FDMA for uplink wireless transmission," IEEE Veh. Technol. Mag., vol. 1, no. 3, pp. 30-38, Sept. 2006. [3] H. G. Myung, J. Lim, and D. J. Goodman, "Peak-to-average power ratio of single carrier FDMA with pulse shaping,"

show abstract

Impact of Radio Resource Allocation and Pulse Shaping on Papr of SC-FDMA Signals

Cited by 34 publications

References 9 publications

SC-FDMA based systems to Reduce PAPR by using a Modified Companding Scheme

SC-FDMA based systems to Reduce PAPR by using a Modified Companding Scheme

Low Density Spreading for next generation multicarrier cellular systems

PAPR reduction by pulse shaping using Nyquist linear combination pulses

Contact Info

Product

Resources

About