S
Stefan Kaiser
Researcher at NTT DoCoMo
Publications - 65
Citations - 3144
Stefan Kaiser is an academic researcher from NTT DoCoMo. The author has contributed to research in topics: Orthogonal frequency-division multiplexing & Telecommunications link. The author has an hindex of 21, co-authored 65 publications receiving 3116 citations. Previous affiliations of Stefan Kaiser include German Aerospace Center.
Papers
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Book
Multi-Carrier and Spread Spectrum Systems
Khaled Fazel,Stefan Kaiser +1 more
TL;DR: In this paper, the authors provide an in-depth insight into hybrid multiple access techniques based on multi-carrier (MC) transmission, and present numerous hybrid access and air interface architectures including OFDM/CDMA, MC-CDMA and MT-CDMAC over new techniques such as space-time coding and software radio.
Book ChapterDOI
Pilot-symbol-aided channel estimation in time and frequency
TL;DR: Filtering in two dimensions is revealed to outperform filtering in just one dimension with respect to overhead, mean-square error performance and latency.
Proceedings ArticleDOI
Standard conformable antenna diversity techniques for OFDM and its application to the DVB-T system
Armin Dammann,Stefan Kaiser +1 more
TL;DR: Different antenna diversity concepts, which can be easily applied to orthogonal frequency division multiplexing (OFDM) systems, are investigated and applied to the DVB-T system for error performance investigations.
Journal ArticleDOI
OFDM code-division multiplexing in fading channels
TL;DR: It can be shown that OFDM-CDM outperforms conventional OFDM with respect to bit error rate (BER) performance and bandwidth efficiency.
Patent
Method of simultaneous radio transmission of digital data between a plurality of subscriber stations and a base station
Stefan Kaiser,Khaled Fazel +1 more
TL;DR: In this paper, the authors proposed an optimum combination of multi-carrier modulation with the spread-spectrum technique for both the upstream and downlinks in future cellular mobile-radio systems, where the data of a subscriber station are transmitted to a partial quantity of subcarriers in the frequency band, with the partial quantity associated with the individual subscriber stations being disjunct and distributed over the entire transmission band.