backhaul antenna

Question: In a rectangle, there are n Cities '*'. Now all N cities need to cover wireless networks. If a base station is placed, it can cover at most two adjacent cities.How many base stations can be placed to ensure that all cities are wireless?

Question link: http://poj.org/problem? Id = 3020 First of all, ignore the one that may mislead others (maybe I have poor understanding, or I am misled by a little bit ). An H * w graph is provided. "*" indicates point of interest, and "O" ignores it.

There are n cities in a rectangular grid. Now all N cities need to be covered in wireless networks. For any base station, it can overwrite any adjacent two grids. So if we build a base station together, we can make all the cities covered and use the

This is a classic binary match. After the grid is marked as black and white, the grid containing '*' is then divided into two groups based on black and white to create edges. The final result is the total number of '*'-the number of matches. #

This question requires a more detailed understanding of binary matching! At the same time, you need to use a little bit of brains! Unlike hdu4185, the idea of creating a graph is that 4185 does not need to cover all vertices, but this question

, Japan Telecom, and France Telecom, are evolving their wireless access networks from distributed to centralized base stations to maximise their capex and opex investments while improving spectral efficiency. The centralized ran architecture reduces capex by reducing the cost of the base station and improving the utilization of the baseband. Opex reduction is achieved by reducing power consumption, site leasing, and maintenance costs. However, centralized baseband processing requires a large-cap

only transmit data with a single node in one type of RAT, which leads to problems such as insufficient wireless resource utilization, repeated investment in network infrastructure, and further improvement of network capacity. Although HetNet is currently a typical application scenario for improving network capacity, as the number of small sites increases, more and more "community edges" will emerge in the future ", frequent switching, increased failure rate, and reduced throughput of edge users

cell" deployed in the current network. Self-backhaul Small cell deployment only needs to be installed on the base station side of the board, and other hardware parts of the current network need not change. At present, Kumu Networks has received a lot of financing, but to truly achieve landing, but also face some challenges. 1 circuit board parts design. Self-interference cancellation circuit design needs to support broadba

Influence of LTE technology on PTN China and the rest of the world are entering the brand new 4G/LTE era at full speed. As a mobile return technology, PTN faces severe challenges even after years of evolution and maturity. Some of these technological changes are huge enough to trigger a PTN revolution. This article takes into account the deployment of macro base stations and micro base stations, and reviews the changes and challenges faced by the LTE return technology compared with the current

The concept of radar was formed in the early 20th century. Radar is a transliteration of radar, abbreviated as radio Detection and Ranging. It is an electronic device that uses microwave band electromagnetic waves to detect targets. Composition The specific use and structure of various radars are different, but the basic form is the same, including five basic components: the transmitter, the transmitting antenna, the receiver, the receiv

This is for the only free mini PCI-E slot models, such models are also more common, especially in some international brands of models. With the mini pci-e slot, according to the method of the previous period to add 3G network card and mobile card slots, this time only need to install 3G antenna is done. Buy Antennas as needed The price of the notebook antenna is very cheap, the general double price will n

Design and simulate Wireless LAN device antennas [Date:] Source: /21IC Author: How Siang Yap and Bart Van Hecke of Agilent EEsof EDA Department [Font: large, medium, and small] 　 By adopting polarization diversity technology, low-cost PCB substrates can be used to create Wireless LAN equipment (WLAN) antennas with good receiver performance. This article will describe how to use the latest 3D electromagnetic field (EM) simulation tool to design and simulate a 2.4 GHz orthogon

I'm sure everyone knows about the three major wireless 3G standards. Therefore, there is a unique and advanced technology in the TD wireless technology, which is different from the other two technologies-smart wireless technology, that is, smart antenna technology. The Smart Antenna, formerly known as the Adaptive Antenna Array AAA and Adaptive

overcome several major challenges: backhaul, addressing, and spectrum," said James faucette, managing director of Morgan Stanley in a recent speech. "To use a 5 GB base station, you must deploy a base station several hundred times more. 5G running frequency is much higher than the previous wireless standard. When the millimeter wave frequency is reached, 5g signals are basically not covered in a single room. Unpredictable signals and how far they can

The following is a small series for everyone to collect the "No line by the knowledge misunderstanding" all content, if you like small series of recommendations, please continue to pay attention to learning. More antennas, better routing? "The more the antenna coverage, the more the antenna more signal stronger, in short, the more the antenna routing is better

data, wireless optimization mainly includes the following aspects in the engineering hardware. 1. Relocation of the base station. The main point is to adjust some unreasonable base station to give full play to the function of the base station and achieve the coverage target. If a base station antenna is in front of a tall building seriously blocked, a base station antenna hanging high, resulting in seriou

I. Test conditions The beacon tower method is also known as the conventional far-field method. It is a common method to test the antenna pattern in the conventional field. This is the simplified frame of the antenna tested by the standard tower method. In the conventional far-field method test [20], to ensure the test accuracy, the following test requirements should be met: 1) the distance between the rec

development, WIMAX is currently working on network structure standards and business application requirements. The standard is the creator of technical standards, and WIMAX is the promoter of technology and industrial chain. WiMAX has made an important contribution to IEEE consistency standards. With the development of 802.16 standardization, WiMAX is also gradually promoting consistency testing. In China, WG3, a wireless access working group under CCSATC5, is engaged in the follow-up and Resear

4G investment over 240 billion Optical Fiber splitters will increase in demand By 2014, China Mobile will build 0.5 million base stations with an investment of more than 240 billion yuan. The 4G wireless network will cover 340 cities and strive to expand 50 million 4G users, with the arrival of the 4G era, the demand for optical fiber splitters will increase dramatically. Mobile communication is wireless and has nothing to do with cables? In fact, the Access Frequency of 4G is higher than that

even plan for coexistence of legacy and 802.11n APs. if you want CT co-existence of legacy and 802.11n clients, you shoshould consider using dual radio aps to separately serve legacy and 802.11n clients for better performance. Q. If I deploy 802.11n, Do I also need to upgrade my Ethernet LAN to Gigabit Ethernet?An 802.11n AP serving only 802.11n clients can deliver over 150 Mbps throughput. in this case, the 10/100 Ethernet LAN is the bottleneck and you shoshould consider upgrading it to Gigabi