Essay on Week 3 iLab Report

In 2002 and 2003, WLAN products supporting a newer standard called 802.11g emerged on the market. 802.11g attempts to combine the best of both 802.11a and 802.11b. 802.11g supports bandwidth up to 54 Mbps, and it uses the 2.4 GHz frequency for greater range. 802.11g is backwards compatible with 802.11b, meaning that 802.11g access points will work with 802.11b wireless network adapters and vice

3. Reverse-direction protocol – allows the ability to transfer control of an air channel between stations. This is especially good if the receiver is moving and the transmitters are trying to keep the best connection possible.

Please answer the following questions. Be sure to cite sources with the appropriate APA style references. Please be as thorough as possible and bring your work to class on Tuesday, December 22, 2015.

Furthermore, to accommodate the transient nature of ABC Company’s employees during their day-to-day operations, a wireless access point (WAP) will be installed centrally on each floor. Because of the location of each WAP, there is a chance of signal bleed over between floors. To mitigate this possibility, each floor will have a non-overlapping channel assigned to it; floor one will use channel 1, floor two will utilize channel 6, and floor three will employ channel 11. Furthermore, the antenna strength will be configured so there is minimal signal bleed over outside of the confines of the office while still having full connectivity within the confines of the building. With this wireless architecture, employees can move from floor to floor and maintain network connectivity without co-channel interference from channel bleed over. When employees are traveling, the implementation of terminal access controller access-control system plus (TACACS+) servers will allow remote access via a virtual private network (VPN). Between WAP and TACACS+ employees have the ability to be mobile while using their

Introduction 802.11AC basics Why 802.11ac? 802.11ac technology overview Backward compatibility RF spectrum Multistation MAC throughput > 1 Gbps 256 QAM Wider channels More spatial streams Downlink multi-user MIMO Pros of 802.11ac Cons of 802.11ac Strategy and planning for 802.11ac migration Site planning basics Planning process Minimum requirements and actions to implement 802.11ac Aruba recommendations for 802.11ac migration General Capacity RF planning Installation Wireless RF coverage considerations and questionnaire Summary 3 3 3 4 4 4 5 5 5 5 6 6 6 6 6 6 7 8 8 8 8 8 9 10

802.11ac is a fifth generation WLAN standard. The transfer speed of this standard is three times higher than the speed of its predecessor and is at the same time much faster than the standard that emerged in 1997. Its security is improved, and both the capacity and the range of this standard are significantly enlarged. Those features play a key role in its quality improvement. Its speed reaches up to 1Gbps, enabling high bandwidth transfer on multiple devices at the same time. The 5GHz channel reduces the number of errors. There is large number of wireless devices that broadcast equivalent omnidirectional signals but when using the 802.11ac standard there is an option to find the location of the broadcasting device in the network. Using this option, the sender can locate and send the packages directly to the device which is connected to the Internet and that is the reason why the signal is stronger, clearer and three times faster. The aim of this research would be to analyze all characteristics mentioned above and their practical implementation in a device that uses 802.11ac standard.

The beacon serves the purpose MAC layer synchronization. The downlink frame is used for transmission from gateway to node, which can accommodate on-demand traffic. The uplink frame consists of two sub-parts: Contention Access Part (CAP) and Contention Free Part

Various industries such as manufacturing, retail, healthcare, energy and many others support unique types of endpoints in their networks for which 802.1X supplicant software is not available. In many environments, non-802.1X endpoints can far outnumber 802.1X-capable ones.

IEEE 802.11n is a revolutionizing standard which can achieve very high data rates with the introduction of MIMO technology in wireless networks and modulation schemes like OFDM.[1] Theoretically, it can achieve a maximum data rate of 600 MBPS which is nearly ten times more than its predecessor. It uses many efficient methods such as MIMO technology, OFDM scheme and many multiplexing techniques such as spatial multiplexing to bolster its quest for higher throughput. The fast growing mobile device usage also inflames the development of wireless standards. The physical and medium access control layers in wireless standards have a significant effect on the data

The Physics department is using a LinkSys 802.11b wireless access point and LinkSys wireless NIC cards with desktop computers. Their primary use is for internet access.

– Which deployment scenario is best – Which IEEE wireless network standard should be used – Type of AP management to implemented – Where wireless devices should be located

Although 4G network in some areas not yet fully universal, but the most recent 5G this topic has fired up. 5G network as a next generation mobile communication network, its theoretical maximum transfer speeds of up to tens of Gb per second, which is far more than the transmission rate of the existing 4G network, the whole ultra-high-definition movie can be downloaded completed within one second. 802.11ac technology are used in fifth generation network as a mainstay. It has also become the focus of the network industry concerned. This report try to represent a full picture of 802.11ac technology.

Wi-Fi (wireless fidelity) is a way to connect to the internet without any wires or cumbersome cables. Wi-Fi technology uses a radio technology called 802.11 b for the wireless connectivity. 802.11 buses 2.4GHz of band frequency spectrum with a bandwidth of 11Mbps(802.11a-5GHz,54Mbps & 802.l1g-2,4GHz,54Mbps).In this paper we have discussed in detail about what Wi-Fi is and How does it work, what the hotspots are and how does the Wi-Fi technology has been implemented in these hotspots.

Wireless technology has become an increasingly crucial part of today's world. From health care and retail to academia across the world, wireless systems are improving the rate and ease with which data is sent and received. Two specific examples of the wireless technology used today personally and professionally are local area networks (LAN) and personal area networks (PAN).

Line-of-sight. It has a higher frequency up to 66 GHz that allows eradicate the errors quite a bit with a larger capacity of data.