The wireless access network technology is quite common. So I studied the comprehensive comparison between the Wireless Access Network Technology and the MMDS access technology. I would like to share it with you here and hope it will be useful to you. An important factor in whether APON can be widely used is the price issue. At present, the first generation of actual APON products have limited service supply capability and high costs. The market prospe
Wireless access technology is currently one of the most popular access technologies, and its share in the market is also very large. At the same time, many cities have applied wireless networks, it brings users a good network environment.
1. What is MMDS?
Now the wireless access technology has sprung up as a wide variety, what GPRS technology, CDMA technology, DS-CDMA technology, EDGE technology, LMDS Technology, etc, these technologies can provide u
Access network refers to the "user interface and Business node interface between the implementation of the host function of the entity." Access network basically includes transmission system, multiplexing equipment, user/network interface, digital crossover equipment, etc., usually access network transmission system according to the transmission medium into wired access and wireless access. Wireless access technology has a variety of classification methods, according to the transmission rate, th
-distance wireless access technology representatives are: GSM, GPRS, 3G, short-range wireless access technology representatives include: WLAN, UWB and so on. According to the mobility can be divided into mobile access and fixed access. Fixed wireless access technology mainly include: 3.5GHz wireless Access (MMDS), Local multicast distribution service (LMDS), 802.16d, mobile wireless access technology mainly includes: based on 802.15 Wpan, WLAN based o
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There are three main types of broadband and fixed wireless access technologies, namely the multi-channel multi-point allocation (MMDS) service that has been put into use) and the live video satellite system DBS) as well as the local multi-point distribution service LMDS that are conducting field tests ). The first two are already well-known, while LMDS is just emerging and has recently become a hot emerging broadband wireless access technology.
A ty
, airports, and other occasions that require mobile broadband wireless access technology integration, in addition, you can perform unified management on the MSAP network management platform.
B. LMDS/MMDS
LMDS/MMDS provides long wireless transmission distance, large bandwidth, and support for both voice and data services. Therefore, this technology is applicable to relatively remote areas, currently, areas t
Broadband wireless access technology is worth learning a lot. Here we mainly introduce the DOCSIS-based broadband wireless access technology, from the DOCSIS Protocol release to the current development trend, many related equipment manufacturers use DOCSIS Protocol in their 3.5 GHz MMDS products because DOCSIS uses many mature technologies to support IP services well, it has adapted to the current technological development trend, and has adopted a lar
Wireless access technology is worthy of our research. Many people may not understand wireless access technology and its features. It does not matter. After reading this article, you must have gained a lot, I hope this article will teach you more things. Now, all operators have their own backbone networks, but the planning and construction of their access networks play an important role in connecting customers to their own networks as quickly as possible. Currently, due to factors such as urban c
limited mobility. The main fixed wireless access systems include multi-channel Multi-Point Distribution Service (MMDS), local Multi-Point Distribution Service (LMDS), one-point multi-address microwave system, and satellite live broadcast system (DBS ).
Fixed Wireless Access is the original fixed wireless access system developed as a wireless extension of the PSTN/ISDN network, but with the emergence of broadband wireless access systems such as LMDS a
-stat.stanford.edu/~naras/stat290 paradigm, Stanford UniversityHttp://www.stanford.edu/class/cs246/cs246-11-mmds Mining Large datasets, Stanford UniversityHttps://graphics.stanford.edu/wikis/cs448b-10-fall data Visualization, Stanford Universityhttp://www.stanford.edu/class/cs369m/massive data set analysis, Stanford University's algorithmhttp://hci.stanford.edu/courses/cs448g/Interactive data analysis, research topics at Stanford Universityhttp://www.
Broadband Wireless access technology represents a new development trend of broadband access technology, not only the rapid opening of the network, simple maintenance, low-cost users, but also changed the traditional concept of local telecommunications services, the most suitable for new telecom competitors to carry out effective competition, It can also be an important supplement to cable access for telecom companies. 1 Business category editing MMDS
can be used without modification, and the application software development is simple; Mobile terminal communication number directly using IP address 。 CDPD system also supports user handoff and full network roaming 、 broadcast and group call, and can interconnect with public wired data network 。
Wireless access technology type 5 fixed broadband wireless access (MMDS/LMDS) technology
The broadband wireless access system can be divided into
There are three main types of broadband fixed wireless access technology, namely, the multiple-point distribution Service (MMDS), the direct broadcast Satellite System (DBS) and the local Multicast Distribution Service (LMDS) which is in the experimental stage. The first two are already well known, and LMDs is just emerging, and has recently become a popular broadband wireless access technology. LMDs is a kind of microwave broadband service, working i
the distance between these wireless technologies and the data rate. As shown in figure 1, the higher the data rate, the shorter the working distance. Network technology can be used to expand the distance and maintain the data rate.
Table 1 wireless services, applications, and specifications
Figure 1 Relationship between data rate and distance of wireless technology
Currently, most cell phone development uses g technology, such as CDMA 2000, GSM/GPRS/EDGE, and their variations. UMTS/3GPP
With the development of wireless networks, people have higher and higher requirements on networks. Broadband wireless access technology emerged. As the name suggests, the broadband wireless access technology improves the speed and capacity of the wireless network. The following describes the comparison of the Five broadband wireless access technologies.
Broadband wireless access technology represents a new trend that cannot be ignored in the broadband access technology. It not only provides fast
and reverse channel keys are asymmetric, and keys are controlled by the Exchange Center and logged on to the mobile terminal once, the Exchange Center automatically checks the old key and replaces the new key once, implementing dynamic management.
In addition, because the CDPD system is an open system based on TCPIP, we can easily access the Internet. All application software based on the TCPIP protocol can be directly used without modification. The application software is easy to develop; the
The broadband wireless access technology represents a new and noticeable development trend of broadband access technology, not only the network opening fast, maintenance simple, the user is more dense when the cost is low, and changed the traditional concept of local telecommunications business, the most suitable for new telecom competitors to carry out effective competition, can also be a telecommunication company wired access to an important supplement. At present, there are several popular br
channels, such as satellite, cable TV, SDH, PDH, ATM, MMDS and terrestrial digital television broadcasting (DVB-T, it is suitable for transmitting data from the backbone network to the regional network, the Metropolitan Area Network, and the residential area on different scales.2. The data transmission rate is high and the error rate is low. The 64-QAM modulation method is adopted in the HFCs. The data transmission rate of a standard 8 m TV channel c
The urgent needs for high-speed data services and the future needs for video services provide unprecedented opportunities for broadband access, and various broadband access technologies are emerging. The ATM-based PON combines the capabilities that ATM is suitable for providing comprehensive broadband services. The upstream and downstream communication bandwidths can reach 155 Mbps. The bandwidth available to each user can be flexibly divided based on the protocol for sharing.
At present, it mai
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