Results 51 to 60 of about 700,115 (306)
Applied Sciences, 2021 In this paper, we investigate users’ performance under the hybrid spectrum access model in the massive cognitive radio network (CRN), where multiple primary users (PUs) and secondary users (SUs) transmit on the same channel simultaneously.
Samuel D. Okegbile, Bodhaswar T. Maharaj
doaj +1 more source
A selective delayed channel access (SDCA) for the high-throughput IEEE 802.11n
, 2009 — In this paper we investigate the potential benefits of a selective delayed channel access algorithm (SDCA) for the future IEEE 802.11n based high-throughput networks.
Charilaos Zarakovitis +5 more
core +1 more source
The Gaussian multiple access diamond channel [PDF]
2011 IEEE International Symposium on Information Theory Proceedings, 2011 In this paper, we study the capacity of the diamond channel. We focus on the special case where the channel between the source node and the two relay nodes are two separate links of finite capacity and the link from the two relay nodes to the destination node is a Gaussian multiple access channel. We call this model the Gaussian multiple access diamond
Wei Kang 0002, Nan Liu 0001
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Harmony search aided iterative channel estimation, multiuser detection and channel decoding for DS-CDMA [PDF]
, 2010 A novel Multiuser Detection (MUD) scheme is proposed for DS-CDMA systems employing the so-called Harmony Search (HS) algorithm, which is a novel meta-heuristic optimisation method.
Rong Zhang +3 more
core +1 more source
Dianxin kexue, 2015 : VANET／LTE-Advanced heterogeneous network was proposed by combining LTE-Advanced with VANET. The utilization of channel and channel access mode was reconfigured in order to improve the system performance. Aiming at the V2V communication, the performance
Zhexin Xu, Lingling Cai, Xiao Lin, Yi Wu
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Distributed Triggered Access for BSM Dissemination in 802.11bd V2V Networks
Applied Sciences, 2019 In this paper, a novel channel access scheme, Distributed Triggered Access (DTA), is proposed for distributed V2V Basic Safety Message (BSM) dissemination in future platooning environment.
Woojin Ahn, Ronny Yongho Kim
doaj +1 more source
Performance evaluation of channel estimation techniques for MIMO-OFDM systems with adaptive sub-carrier allocation [PDF]
, 2006 Dynamic Sub-Carrier Allocation (DSA) strategies have been shown previously to achieve significant performance benefits when applied to OFDMA systems and further benefits for MIMOOFDMA systems.
J. McGeehan +5 more
core +1 more source
物联网学报, 2022 To address the low spectrum utilization issue of the distributed network due to multi-user collision and channel time-varying nature, the distributed channel access problem for multicast communication was investigated.Based on the optimal stopping theory,
Yizhu WANG +3 more
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola +4 more
wiley +1 more source
On a multiple-access in a vector disjunctive channel [PDF]
2013 IEEE International Symposium on Information Theory, 2013 We address the problem of increasing the sum rate in a multiple-access system from [1] for small number of users. We suggest an improved signal-code construction in which in case of a small number of users we give more resources to them. For the resulting multiple-access system a lower bound on the relative sum rate is derived.
Alexey A. Frolov +3 more
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