Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
TLDR
This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions and discusses similarities and differences of SC and OFDM systems and coexistence possibilities, and presents examples of SC-FDE performance capabilities.Abstract:
Broadband wireless access systems deployed in residential and business environments are likely to face hostile radio propagation environments, with multipath delay spread extending over tens or hundreds of bit intervals. Orthogonal frequency-division multiplex (OFDM) is a recognized multicarrier solution to combat the effects of such multipath conditions. This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions. SC radio modems with frequency domain equalization have similar performance, efficiency, and low signal processing complexity advantages as OFDM, and in addition are less sensitive than OFDM to RF impairments such as power amplifier nonlinearities. We discuss similarities and differences of SC and OFDM systems and coexistence possibilities, and present examples of SC-FDE performance capabilities.read more
Citations
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Journal ArticleDOI
Iterative layered space-time receivers for single-carrier transmission over severe time-dispersive channels
TL;DR: This letter presents an iterative layered space-time (LST) receiver structure for single-carrier (SC)-based transmission in severe time-dispersive channels that combines LST principles with iterative block decision feedback equalization techniques.
Journal ArticleDOI
Effect of Mode Coupling on Signal Processing Complexity in Mode-Division Multiplexing
TL;DR: In this article, the authors evaluate the computational complexity of various MIMO single-carrier equalizers, considering separate or combined equalization of CD and MD, in the time or frequency domain.
Patent
Pilot transmission and channel estimation for a communication system utilizing frequency division multiplexing
Ravi Palanki,Aamod Khandekar +1 more
TL;DR: In this article, a transmitter generates a pilot having a constant time-domain envelope and a flat frequency spectrum based on a polyphase sequence, which is transmitted in the time domain via a communication channel.
Journal ArticleDOI
Wireless communications for vehicle safety: Radio link performance and wireless connectivity methods
TL;DR: Long-range safety systems are needed with real-time detection capability and without requiring a line-of-sight (LOS) view by the driver or sensor to help avoid accidents.
Proceedings ArticleDOI
Low complexity CDMA downlink receiver based on frequency domain equalization
TL;DR: Three methods of implementing FDE in the CDMA downlink are described: the cyclic prefix method, the zero padding method, and the overlap-cut method, which offers the possibility to build a multimode receiver for singlecarrier and multicarrier signals.
References
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Journal ArticleDOI
Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing
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Journal ArticleDOI
BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise
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Journal ArticleDOI
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