Radio Network Performance For Indoor Cellular Systems

These technologies bring the network closer to mobile users and improve spectral efficiency (SE) per unit arena (i.e capacity). Due to lower power and smaller physical size, pico/ femto/ relay cells can also be deployed to eliminate coverage holes and relay cells can be used in backhaul, where wire line backhaul is unavailable or not economical [150]-[152]. The heterogeneous deployment of LTE networks comprising of conventional Macro cell base stations overlaid with LPNs. The often random and unplanned location of these access points can cause severe interference problems especially for cell edge users. This problem was typically addressed by coordinating base-station transmissions to minimize interference. Figure 2.10 shows a heterogeneous

This is a direct extension of the 802.11b that extends the maximum data rate to 54Mbps, making it possible to serve up to five times as many users. Our Wi-Fi network is based on the IEEE 802.11 b/g standards, which is the most commonly used standard. We have added Wi-Fi access points in our network to give easier access to corporate data and services. Most of the devices in this network, for example the personal computers, smartphones, digital cameras, tablets and digital audio players connected using the Wi-Fi technology. The hotspot will be in the range of 20 meters (66 feet) indoors and a greater range outside.

The solution includes city-wide publicly accessible wireless network. Utilizing a city wide wireless broadcast signal provided by Nanobridge technology and 120 outdoor wireless access points, providing over 14 square miles for wifi access anywhere in city limits and also providing for growth.

Wireless DSL is a type of fixed wireless which requires a line of sight between communicating transmitters. Unfortunately; this makes its application limited, because in order to be effective, it requires tall buildings or towers. Most multitenant buildings such as hotels, remote office buildings and apartments use this. Transmitters are what connect the building to the ISP, and the DSL used inside the building connects to the wireless transceiver. Fixed wireless can be point to point or multipoint. Satellite is another form of fixed wireless. Both the point-to-point and multipoint versions have data transmissions ranging from 1.5 to 54 Mbps, dependent on the vendor. Mobile wireless service can be set up by the provider in a package one the WAP network protocol is fixed to support it. (Wireless Application Environment) (Fitzgerald, 349-350).

In Fig. 1, the 4 nodes are considered. Among the four nodes 2 of the nodes (Node 1 and Node 2) are primary networks and 2 other nodes (Node A and Node B) are secondary networks. The two networks act in different frequency range. The primary network acts at a range of 2.4GHz - 2.4835GHz range. The secondary network acts at a range of 433MHz - 473MHz represents the block diagram of the proposed system. The use of different frequencies increases the number of users. Node 1 and Node 2 communicate at 2.4GHz and Node A and Node B communicate at 433.9MHz. The nodes are made mobile and this causes high interference. This is cancelled by channeling where the frequencies are slotted. Multi-hop cognitive radio technique occurs when the data is transmitted from one secondary node to another which is out of range via primary node. At that time the primary node which is of MIMO antenna switches itself to the secondary node frequency and transmits the data. Wireless MIMO systems with multiple antennas employed at both the transmitter and receiver have gained attention because of their promising improvement in terms of performance and bandwidth efficiency [8].

In the recent years, wireless technologies have taken a new dimension in the ways society lives. Wireless broadband is available to everyone. Whether the users are at home, driving the car, sitting in the park, and it would even work while people are a pleasure boat ride in the middle of a lake. And because of this, the need to have information at any time and be connected in all places, all the time has been satisfied.

You are sacrificing a more spread out coverage area for the ability to shoot a narrow RF beam over a greater difference, lending more stability and higher possible speeds to your WLAN. Week2: Relationship Characteristics Checkpoint

The market for wireless communications has experienced incredible growth over recent years and wireless LANs have rapidly become a very

Installation of wireless networks are relatively easy - they often simply involve playing a wireless access point in a place where the signal reaches the most areas. In more advanced installations, it is common to use a radio mapper to determine where the signal does and does not reach, for practicality and security reasons. The power of the router is important to consider and often can be adjusted on the software side to suit the

Because this is going to incorporate a whole campus there will be a wireless receiver at the top of every building. However we will have them all in together so that way they work as one and a student will be able to access any of them from any location and allow them to transition from one to another with ease. We will also incorporate a repeater on the bottom floor to allow for full building coverage and to extend the network throughout the campus itself. The Only Exception will be for the library and in the library we will have a strict Network that will allow for the students to be able to access specific training material and the library's internal architecture. The equipment itself will be a very good Mount of switches and routers to allow for easy authentication and access. The equipment will be scattered throughout each building and we will ensure that there is proper coverage of the wireless network and proper capability of the staff meeting to be able to handle the amount of devices inside of the

With the advent of high technological advancements in the field of telecommunication, it has become necessary to provide full capacity network coverage and high data rates to a user at all places. The research paper will focus on introducing small cells as a solution to the user needs by giving an overview of different kinds of architectures for LTE deployment in small cells and coordination techniques for synchronization between these architectures.

Identify where additional antennas, access points, or repeaters may be needed to provide even levels of coverage and capacity.

The wireless mobile industry is still a growing industry, with revenues continuing to increase over the next few years. Wind Mobile’s unlimited plans have also contributed to the increase per subscriber usage of wireless. Features and functionality redefined by new technology i.e. new

Abstract—In the recent times, researches show that all wireless networks are not energy–efficient than what we expect to be, especially the base stations through which the terminal access takes place. In order to overcome and solve this problem Mobile Virtual Centre of Excellence (VCE) has performed a project named Green Project in the year 2009 and the main aim of this project is to overcome all the problems and to develop a process which is going to save energy in future wireless systems. This paper deals with the technical parts of the project and details several other current energy consumption models in the base station devices. This article also provides some good ideas in reduction of the energy consumption for the future radio base stations which helps to reduce the burden on the network providers.

Wireless LANs have expanded greatly and rapidly in recent years. The expansio¬¬¬¬¬n has caused many benefits to the end users but at the same time it has introduced problem of overlapping BSS (Basic Service Set) where BSS (i.e. WLAN cells) is fundamental block of IEEE 802.11 WLAN architecture. OBSS occurs due to two or more unrelated BSSs are used at the same place, at the same time and with the same frequency channel. With the expansion of channel bandwidth to 80 MHz (may be, 160 MHz) in upcoming standards, the OBSS problem is likely to be very severe in the future. This paper examines how OBSS can be harmful to the networks and how it can be avoided using beam forming, distributed coordination across different APs, and power management.