DS-UWBDirect Sequence Ultra-Wideband
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References in periodicals archive ?
A code-aided interference suppression method was introduced for narrow band interference restriction in DS-UWB systems [15].
In Section 2, the DS-UWB system models are introduced.
Consider a K-user asynchronous DS-UWB system in additive white Gaussian noise (AWGN) channel, and assume that each user employs the binary phase-shift key (BPSK) modulation.
Tang, "A Hybrid multiuser detection algorithm for outer space DS-UWB Ad-hoc network with strong narrowband interference," KSII Transactions on Internet and Information Systems, vol.
Wu, "A new optimal MUD algorithm based on searching in the local space of sub-optimal MMSE solutions for DS-UWB communication systems," Journal of the Chinese Institute of Engineers, vol.
In this paper, we introduce decision feedback equalizer (DFE) in MUD for MIMO DS-UWB system, because DFE shows a relatively good BER performance for the detection and equalization in MIMO system [12][13][14][15][16].
In section 2, we describe the general structure of the MIMO DS-UWB system model, while the focuses of section 3 are divided into three parts: the theoretical analysis of the MMSE performance MIC DFE-EFF, the illumination of COA and the presentation of DA.
In order to possess a good BER performance and a low time complexity, we investigate an efficient multiuser detector by selection of initial states based on code mapping for the Artificial Bee Colony algorithm (SCM-ABC-MUD) in DS-UWB systems.
If there are K active users in this DS-UWB MA system, thus the state is a Thdimensional vector, like [X.sub.0] = [([x.sub.1], [x.sub.2], ..., [x.sub.K]).sup.T], where [x.sub.i] [member of] {-1,+1} and i = 1,2, ...,K.
According to the concrete environment of outer space formation flying, it would be a wise choice to use DS-UWB techniques for establishing wireless communication links between the aircrafts.
In the UWB communication system, the multiple access scheme includes two types: time hopping UWB (TH-UWB) and direct-sequence UWB (DS-UWB).
The UWB Forum announced that the organization has grown to more than 50 members, less than five months following the forum's formation, underscoring the industry's support for an ultra-wideband (UWB) solution that is available now and employs the Direct Sequence Ultra-wideband (DS-UWB) approach.