Conclusive Statement – The Winner is..

Conclusive Statement – The Winner is..

Wireless
Dear readers, this will be the last post pertaining to this series of blog posts. Before I go the conclusive statement, lets see what we have seen so far very shortly. Firstly the topic chosen was about the standardization of the 60 Ghz frequency band.  We saw about various organizations competing for the race and about the various features of the 60 Ghz band which is one of the frequency band on which the future communications will be based upon. Then we saw about the highlighting beam forming protocol and the beam forming training of this standard. Lastly in the previous post we saw about the comparison of the various organization's technologies to draw a conclusion. HIGHLIGHTS OF IEEE 802.11 ad: The beam forming training protocol enables highly directional communication.…
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So Which One is It Now

So Which One is It Now

Wireless
Hello readers, we are coming to a close on this 60 Ghz band soon . In my previous posts, we have been seeing about the technology introduced in this 60 Ghz band by IEEE 802.11 ad - beamforming training associated with the 802.11 ad and the enhancement that has been made to  connect with the PCP/AP without preceding coordination. In this post we will see about what various organization has to contribute to this 60 Ghz band and then which organization hold strong position with respect to the standardization of this frequency band. COMPARITIVE ANALYSIS: BEAMFORMING:  We have already seen about the beamforming of the IEEE 802.11 ad, so lets see about the rest. The ECMA-387 uses special frames called TRN frames to determine the appropriate antenna weight vectors. The beam…
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IEEE 802.11 ad Beamforming Protocol

IEEE 802.11 ad Beamforming Protocol

Wireless
Hello all, and in the previous post we saw about the general beamforming training which could be associated into different medium access schemes and the association process.  This post talks about the association beamforming training associated with the 802.11 ad and the enhancement that has been made to  connect with the PCP/AP without preceding coordination. ASSOCIATION BEAMFORMING TRAINING: The beamforming training between the PCP/AP and an unassociated station cannot rely on coordination preceding to the beam training. The PCP/AP uses its beacon sweep during the BTI, as an initiator sector sweep for all stations to overcome the challenges of directional link setup. The Sector Sweep (SSW) frame specific control fields are added to the beacon frame. To allow multiple stations to respond to a beacon sweep without coordination, the A-BFT…
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Beam-Forming Concepts

Beam-Forming Concepts

Wireless
Hello readers, warm greetings and in the last post we saw about the communication at the 60 Ghz range, the design considerations and this week the subject that we are focusing is about the beamforming concept.  But before getting into the topic, we should know why we are going for this concept and why not use the old MIMO concept. Reasons for using the beamforming concept : We have already seen that one of the main problem with the 60 Ghz band is that it suffers from high signal path loss and when we used the Frii's equation for finding the losses, the 60 Ghz band suffers from 28 dB more loss than the present 2.4 Ghz band. In order to address this situation we have to use a large…
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The Communication @ 60 Ghz

The Communication @ 60 Ghz

Wireless
Hello my dear readers, I couldn't resist writing about this topic so this is a back to back posts and it will be a continuation of the previous posts where we saw about the 60 Ghz range, why it is important and who are the key players in this frequency band. This post introduces more about it and specifically we will see about IEEE 802.11 ad which is an amendment to the existing 802.11 standard. We will see about the how this standards new novel techniques helps in highly directional communication than the omni-directional communication that was used in the previous standards. But before getting into it, we will see about the directional communication in detail. DIRECTIONAL COMMUNICATION : We have already seen that the 60 Ghz spectrum suffers from…
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Is 60Ghz a Myth or a Reality?

Is 60Ghz a Myth or a Reality?

Wireless
Hello my dear readers and as the continuation from the previous posts which talked about the fast world of Internet, this post will focus more on the technology behind the fast wifi and what made fast wifi choose this particular frequency band. The ISM bands are the reserved portions of radio spectrum for the use of radio frequency for Industrial , scientific and medical purposes; most of the ISM bands frequencies are available worldwide and some band of frequencies are available according to regions. Many of these bands have already been used and the next frequency targeted is the 60 Ghz band. There is a huge amount of unlicensed spectrum in the 60 Ghz band. They have been used because of the availability of the unlicensed spectrum, and for the…
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Introduction to Fast World of Internet

Introduction to Fast World of Internet

Wireless
Hello again and as the continuation of my previous post, this post will talk about an interesting topic which I have chosen for talking about standards. The topic which I have chosen is based on the Ultra Fast Wifi Connectivity. This is really the W word these days, no body can live without internet or more precisely without accessing their Facebook. If the internet connection that you are getting gets super fast enabling you to do stuff at super speeds, why not read about the technology that goes into making it. But before getting into the topic we will see about the various standards that evolved before to give an overall perspective of the previous Wifi version. The primary reason for developing the wireless LAN standards is to serve the…
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Hola! Wireless Standards

Hola! Wireless Standards

Wireless
"We cannot have islands of excellence in a sea of slovenly indifference to standards.” - John W. Gardner “Without a standard there is no logical basis for making a decision or taking action.” - Joseph M. Juran “Standardization should be optimistic: There is always room for improvement and a better future.” - Shigeru Nakamura “There can be no improvements where there are no standards.” - Masaaki Imai “Standards must be observed, but they are only the starting points for further improvements.” - Shigeru Nakamura   Hello to my readers, welcome to my new series of posts related to what we call the Standards. If you are probably wondering about why I have put few quotes on top and who are these guys? Well even I dont know who these guys are,…
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