NDLI: Multi-user indoor ultra-wideband wireless communication using polyphase spreading sequences

Content Provider	IET Digital Library
Author	Ambroze, Marcel A. Martin, Philippa A. Tomlinson, Martin Taylor, Desmond P.
Abstract	In this study, the authors design a multi-user ultra-wideband system for indoor wireless communication. The proposed system is useful in multipath radio reception as the full multipath diversity gain is achieved. The system has multiple transmitters and receivers. They use polyphase spreading waveforms which feature low levels of mutual interference and enable each of the channel impulse responses to be measured free from distortion continuously with each data symbol transmission. A key feature of the proposed system is that transmitted waveforms are used which produce outputs from the receiver cross correlators, which are zero on both sides of the main correlation peak, for each radio path. This zero response lasts for a duration in excess of the expected delay spread of the radio channel enabling full Rake processing of the multipath signal. The effects of the low levels of mutual interference are reduced further by using time and frequency hopping, forward error correction and soft decision decoding.
Starting Page	585
Ending Page	595
Page Count	11
ISSN	17518628
Volume Number	9
e-ISSN	17518636
Issue Number	Issue 5, Mar (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/9/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.0131
Journal	IET Communications
Publisher Date	2014-12-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Channel Impulse Response Code Data Symbol Transmission Decoding Diversity Reception Electromagnetic Compatibility Forward Error Correction Indoor Communication Interference Multi-access System Multipath Diversity Gain Multipath Radio Reception Multiple Access Communication Multiuser Indoor Ultra-wideband Wireless Communication Mutual Interference Polyphase Spreading Sequence Radio Frequency Interference Radio Link And Equipment Radio Receiver Rake Processing Receiver Cross Correlators Sequence Soft Decision Decoding Ultra Wideband Communication
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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