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CN, a quarterly journal, dedicates to the latest advancements in communications and network technologies. The goal of this journal is to keep a record of the state-of-the-art research and promote the research work in these fast moving areas. All manuscripts submitted to CN must be previously unpublished and may not be…
Lili Chen, Zheng Dou
To improve the data transmission rate and use spectrum flexibly, a new spectrum allocation method for Multiband Impulse Radio UWB (MB-IR-UWB) is proposed in this paper based on the band-limited and orthogonal characteristics of Prolate Spheroidal Wave Functio…
Qi Li, Zongwu Ke, Duanfeng Xia, Yuxia Sun
This paper proposed a novel RED protocol which takes the node’s energy into account depending on the length of the data packet. It also proposed a routing protocol for wireless sensor networks with congestion control which imitates the ant colony foraging beh…
Qinghe Du, Pinyi Ren, Yi Jia, Zhigang Chen
We propose two rate control schemes for multi-antenna multicast in OFDM systems, which aim to maximize the minimum average rate over all users in a multicast group. In our system, we do not require all multicast users to successfully recover the signals recei…
Qinghe Du, Pinyi Ren, Jincheng Lu, Zhigang Chen
Multicast is an efficient way to support emerging multimedia services over wireless network. Fountain codes are used in multicast systems to enable a robust transmission without CSI feedback and ARQ. We propose a cooperative multicast scheme based on fountain…
Julien Kieffer, Sébastien Rieubon, Marc Houdebine, Sébastien Dedieu, Emil Novakov
We present a nonlinear event-driven model of a Digital PLL used in the context of a polar modulation. This modeling has shown that the estimation method of the TDC gain has a big impact on the EVM for wideband modulation and a solution has been proposed which…
Xincheng Zhong, Weihai Li, Yuqin Lv
Coordinated Multi-point (CoMP) transmission technology is one of the key techniques in LTE-Advanced, Which can share the channel and data information in multiple cells, and optimize the whole system performance. In order to optimize the average sector through…
Tao Xue, Fengye Hu, Liying Zhao, Dafei Zang
In this paper, we design and implement a body area network (BAN) based on ZigBee to detect physiological parameters data. The main content can be divided into the design of end node (EN) and sink node (SN). EN collects data by physiological parameter sensor,…
Lei Wang, Zhigang Chen
The conventional orthogonal space-time block code (OSTBC) with limited feedback has fixed p -1 feedback bits for the specific n t p transmit antennas. A new partial feedback based OSTBC which provides flexible feedback bits is proposed in this paper. The prop…
Hongyu Wang, Weixiao Meng, Trungtan Nguyen
In Multi-user MIMO (MU-MIMO) downlink system, suitable user selection schemes can improve spatial diversity gain. In most of previous studies, it is always assumed that the base station (BS) knows full channel state information (CSI) of each user, which does…
Xinyu Mao, Jianjun Wu, Haige Xiang
We propose a pipeline structure for Schnorr-Euchner sphere decoding algorithm in this article. It divides the search tree of the original algorithm into blocks and executes the search from block to block. When one block search of a signal is over, the part in…
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CN, a quarterly journal, dedicates to the latest advancements in communications and network technologies. The goal of this journal is to keep a record of the state-of-the-art research and promote the research work in these fast moving areas. All manuscripts submitted to CN must be previously unpublished and may not be… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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