GNU_Radio GNU radio is a free/open-source software toolkit for and the content is controlled by a handful of organizations. Cell building software radios, in which software defines the phones are a great convenience, but the features your phone transmitted waveforms and demodulates the received supports are determined by the operator s interests, not yours. waveforms. Software radio is the technique of getting code A centralized system limits the rate of innovation. Instead of as close to the antenna as possible. It turns radio hardware cell phones being second-class citizens, usable only if problems into software problems.
標簽： open-source GNU_Radio software toolkit
上傳時間： 2017-06-27
上傳用戶：拔絲土豆
Some time ago, I stated in another article that I d take the idea of location broadcasting and develop a mobile solution as a follow-up. The problem back then was I had no means to get location data off of a cell phone, or a way to make it useful. My, how times have changed since then! In this article, I ll demonstrate how to get your phone s GPS coordinates…
標簽： broadcasting location another article
上傳時間： 2013-12-25
上傳用戶：李夢晗
this application was developed in visual c# to draw the sequence of the data given by Lagrange Interpolation algorithm
標簽： application developed the Lagrange
上傳時間： 2013-12-24
上傳用戶：dreamboy36
Boost C++ Libraries Free peer-reviewed portable C++ source libraries Boost C++ Libraries 基本上是一個免費的 C++ 的跨平臺函式庫集合，基本上應該可以把它視為 C++ STL 的功能再延伸；他最大的特色在於他是一個經過「同行評審」（peer review，可參考維基百科）、開放原始碼的函式庫，而且有許多 Boost 的函式庫是由 C++ 標準委員會的人開發的，同時部分函式庫的功能也已經成為 C++ TR1 (Technical Report 1，參考維基百科)、TR2、或是 C++ 0x 的標準了。 它的官方網站是：http://www.boost.org/，包含了 104 個不同的 library；由於他提供的函式庫非常地多，的內容也非常地多元，根據官方的分類，大致上可以分為下面這二十類： 字串和文字處理（String and text processing） 容器（Containers） Iterators 演算法（Algorithms） Function objects and higher-order programming 泛型（Generic Programming） Template Metaprogramming Preprocessor Metaprogramming Concurrent Programming 數學與數字（Math and numerics） 正確性與測試（Correctness and testing） 資料結構（Data structures） 影像處理（Image processing） 輸入、輸出（Input/Output） Inter-language support 記憶體（Memory） 語法分析（Parsing） 程式介面（Programming Interfaces） 其他雜項 Broken compiler workarounds 其中每一個分類，又都包含了一個或多個函式庫，可以說是功能相當豐富。
上傳時間： 2015-05-15
上傳用戶：fangfeng
We show in the context of a new economic geography model that when labor is heterogenous trade liberalization may lead to industrial agglomeration and inter-regional trade. Labor heterogeneity gives local monopoly power to firms but also introduces variations in the quality of the job match. Matches are likely to be better when there are more firms and workers in the local market, giving rise to an agglomeration force which can offset the forces against, trade costs and the erosion of monopoly power. We derive analytically a robust agglomeration equilibrium and illustrate its properties with numerical simulations
標簽： 經濟、城市化和經濟增長
上傳時間： 2016-04-02
上傳用戶：kinda233
The AP2406 is a 1.5Mhz constant frequency, slope compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell lithium-Ion (Li+) battery. The AP2406 can supply 600mA of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The AP2406 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. Idle mode operation at light loads provides very low output ripple voltage for noise sensitive applications. The AP2406 is offered in a low profile (1mm) 5-pin, thin SOT package, and is available in an adjustable version and fixed output voltage of 1.2V, 1.5V and 1.8V
上傳時間： 2017-02-23
上傳用戶：w124141
I2C（Inter－Integrated Circuit）總線是由PHILIPS公司開發的兩線式串行總線，用于連接微控制器及其外圍設備。是微電子通信控制領域廣泛采用的一種總線標準。
上傳時間： 2017-05-10
上傳用戶：simon_edthorek
Wireless technology has been evolving at a breakneck speed. The total number of cell-phones in use (as of 2011) was over 6 billion for a 7 billion world population [1] constituting 87% of the world population. Additionally, with user convenience be- coming paramount, more and more functions are being implemented wirelessly.
標簽： Front-Ends Cognitive Receiver Radio
上傳時間： 2020-05-26
上傳用戶：shancjb
The rapid growth in mobile communications has led to an increasing demand for wide- band high data rate communications services. In recent years, Distributed Antenna Systems (DAS) has emerged as a promising candidate for future (beyond 3G or 4G) mobile communications, as illustrated by projects such as FRAMES and FuTURE. The architecture of DAS inherits and develops the concepts of pico- or micro-cell systems, where multiple distributed antennas or access points (AP) are connected to and con- trolled by a central unit.
標簽： Distributed Antenna Systems
上傳時間： 2020-05-27
上傳用戶：shancjb
The recent developments in full duplex (FD) commu- nication promise doubling the capacity of cellular networks using self interference cancellation (SIC) techniques. FD small cells with device-to-device (D2D) communication links could achieve the expected capacity of the future cellular networks (5G). In this work, we consider joint scheduling and dynamic power algorithm (DPA) for a single cell FD small cell network with D2D links (D2DLs). We formulate the optimal user selection and power control as a non-linear programming (NLP) optimization problem to get the optimal user scheduling and transmission power in a given TTI. Our numerical results show that using DPA gives better overall throughput performance than full power transmission algorithm (FPA). Also, simultaneous transmissions (combination of uplink (UL), downlink (DL), and D2D occur 80% of the time thereby increasing the spectral efficiency and network capacity
標簽： Full-Duplex Cells Small
上傳時間： 2020-05-27
上傳用戶：shancjb
