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Joint Relay Processing and Power Control in Two-Way Relay Networks

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Joint Relay Processing and Power Control in Two-Way Relay Ne...

Testing algebraic geometric codes

2.11 IEEE 13th International Conference on Communication Technology(ICCT 2.11)

作者： Dongmei Jiang 1 Haixia Zhang 2.Dongfeng Yuan 2.1 School of Physics and Electronic Engineering sichuan normal university chengdu {2. China 2.Schoole of Information science and Engineering Shandong university Jinan Shandong China

In this paper,we consider a two-way relay network,where multiple pairs of users exchange their information with the help of a multi-antenna relay station by means of two-way relaying.A relay processing scheme based on minimum mean square error （MMSE） criterion is employed at the relay station to suppress inter-and intra-pair *** formulate the optimization problem of minimizing the total transmit power of all users under the relay transmit power constraint and the given sum rate *** solve the optimization problem and get the joint relay processing and power control policy,we propose an iteration *** results show the performance of the proposed schemes and are coherent with what we expected.

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science China mathematics 2009年第10期52卷 2171-2176页

作者： CHEN Hao software Engineering institute, East China {2. university, Shanghai 2.0062. China 1. software Engineering institute East China Normal University Shanghai 200062 China

Property testing was initially studied from various motivations in 1990’s. A code C  GF (r)n is locally testable if there is a randomized algorithm which can distinguish with high possibility the codewords from a vector essentially far from the code by only accessing a very small (typically constant) number of the vector’s coordinates. The problem of testing codes was firstly studied by Blum, Luby and Rubinfeld and closely related to probabilistically checkable proofs (PCPs). How to characterize locally testable codes is a complex and challenge problem. The local tests have been studied for Reed-Solomon (RS), Reed-Muller (RM), cyclic, dual of BCH and the trace subcode of algebraicgeometric codes. In this paper we give testers for algebraic geometric codes with linear parameters (as functions of dimensions). We also give a moderate condition under which the family of algebraic geometric codes cannot be locally testable.

关键词： number theory of finite field property testing algebraic geometric codes 94B35 94B99

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L-甲硫氨酸高产菌株的紫外线诱变育种

四川大学学报（自然科学版） 2004年第4期41卷 861-864页

作者：马燕黄敏黄春萍黄敏四川抗菌素工业研究所成都610051 四川师范大学生命科学学院成都610066

以一株具有M 海因水解酶系统产L 甲硫氨酸 (L Met)的芽孢杆菌MV0 0 73为出发菌株 ,用含亮氨酸平板定向选育 ,经过 6轮紫外诱变 ,筛选出系列L Met高产突变株 ,其中菌株M60 4的L Met产量最高在相同培养条件下 ,M60 4的L Met产量是出发... 详细信息

以一株具有M 海因水解酶系统产L 甲硫氨酸 (L Met)的芽孢杆菌MV0 0 73为出发菌株 ,用含亮氨酸平板定向选育 ,经过 6轮紫外诱变 ,筛选出系列L Met高产突变株 ,其中菌株M60 4的L Met产量最高在相同培养条件下 ,M60 4的L Met产量是出发菌株的 3 1 4倍 ,且L Met能以较高含量持续到发酵结束 M60 4连续传代 6次 ,遗传性状比较稳定 .

关键词： L-甲硫氨酸 M-海因酶紫外诱变

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地球圈层长周期演化旋回基本特征

同济大学学报（自然科学版） 2003年第12期31卷 1415-1420页

作者：陶明华邹伟宏支崇远陶亮同济大学海洋与地球科学学院上海200092 华北油田研究院河北任丘062552 四川师范大学资源与环境学院四川成都610068

通过对众多剖面的研究 ,以及对石炭纪以来包括全球构造运动、海平面升降、沉积作用、气候变迁、生物界演化等诸多资料的综合分析 ,阐述了地球圈层演变过程的周期性和阶段性特征 .研究表明 :各种地质演化过程的旋回性存在于多个层次当中 ... 详细信息

通过对众多剖面的研究 ,以及对石炭纪以来包括全球构造运动、海平面升降、沉积作用、气候变迁、生物界演化等诸多资料的综合分析 ,阐述了地球圈层演变过程的周期性和阶段性特征 .研究表明 :各种地质演化过程的旋回性存在于多个层次当中 ;其中 ,超级旋回历时约 1 0 0Ma ,一级旋回历时约 4 0～ 5 0Ma ,二级旋回历时约 1 5Ma ,三级旋回历时约 5Ma ,以及更细微的旋回过程 .超级旋回由 2.一级旋回以弱转折衔接组成 ,而相邻超级旋回之间由强转折联系起来 .二级旋回随时间的发展过程显现为一级旋回的缩影 .超级、一级及二级旋回对称性较好 ,三级。

关键词：地球圈层地质旋回弱转折强转折旋回序列

Computing rarity on uncertain data

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science China(Information sciences) 2011年第10期54卷 2028-2039页

作者： JIN CheQing,ZHOU MinQi & ZHOU AoYing Shanghai Key Laboratory of Trustworthy Computing,software Engineering institute,East China {2. university,Shanghai 2.0062.China 1. Shanghai Key Laboratory of Trustworthy Computing Software Engineering Institute East China Normal University Shanghai 200062 China

The essence of uncertain data management has been well adopted since data uncertainty widely exists in lots of applications,such as Web,sensor networks,*** of the uncertain data models are based on the possible world *** the number of the possible worlds will blowup exponentially with the growth of the data set,it is much more challenging to handle uncertain data than deterministic *** this paper,we take the first attempt to study the rarity,an important statistic that describes the proportion of items with the same frequency,upon uncertain *** have proposed three novel solutions,including an exact method and an approximate method to compute the rarity of a given frequency respectively,and a method to find the frequency of the maximum *** in theorem and extensive experimental results demonstrate the effectiveness and efficiency of the proposed solutions.

关键词： rarity uncertain data possible world

一类含二阶导数项非线性Schrdinger方程的爆破性质

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四川师范大学学报（自然科学版） 2005年第6期28卷 639-642页

作者：冷礼辉张健四川师范大学数学与软件科学学院四川成都610066

研究了一类含二阶导数项非线性Schr dinger方程iut+δΔu+[βΔ|u|2.a|u|p-1]u=0,t>0,x∈RN,(*)其中δ和β是实参数.在a>0,1 p2.:=NN+-2.,N 3,∞,N=1,2.,讨论了该方程初值问题解的爆破性质.

关键词：二阶导数项 Schroedinger方程爆破

Efficient Array Coding Scheme for Large-Scale Storage Systems

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Journal of Electronic science and Technology 2015年第2期13卷 102-106页

作者： Dan Tang software Engineering College Chengdu University of Information Technology

A family of array codes with a maximum distance separable（MDS） property, named L codes, is proposed. The greatest strength of L codes is that the number of rows（columns） in a disk array does not be restricted by the prime number, and more disks can be dynamically appended in a running storage system. L codes can tolerate at least two disk erasures and some sector loss simultaneously, and can tolerate multiple disk erasures（greater than or equal to three） under a certain condition. Because only XOR operations are needed in the process of encoding and decoding, L codes have very high computing efficiency which is roughly equivalent to X codes. Analysis shows that L codes are particularly suitable for large-scale storage systems.

关键词： codes decoding dynamically parity restricted sector encoding operations running correcting