Your route to the wireless world - Wireless Routers

As Internet transcends to our everyday activities, the desire to access the information and store data without being constrained to connected cables is more pronounced than ever. Although, city wide WANs are still in the nascent stages of implementation, the mushrooming of small wireless networks in the homes and in enclosed public areas such as malls and restaurants/stores has been anything but slow. You can find Wifi probably more easily than public telephones nowadays in the cities of US.

This post addresses picking up the better equipment for making your life wire-less inside your home. I shall address the nuances of public place Wifi hotspots in a later post.

I have been battling a war against the 2.4Ghz and 5Ghz in my home. The reason, is the "mushroom" of Wifi equipment in residential apartments as everyone goes Wireless in their homes and couple it with the multitude of gadgets which use the same 2.4 Ghz as do the wireless routers. This congestion of the frequency spectrum causes couple of issues which are highlighted below :

1. Interference due to concurrent use of devices such as cordless telephones or Microwave equipment.
2. Interference due to large number of wireless equipment in a given area.
3. Cross-Interference between equipment when the frequency are right next to each other.

The above issues coupled with other technical difficulties led to induction of the 5Ghz frequency in wireless equipment. This not only ensured that the wireless equipment operated in a range where none of the household equipment currently operate, but also to give a steady signal strength as well.

This introduction of a separate frequency led to design of new wireless equipment which utilize either 2.4 or 5 Ghz transmissions, or come with dual band frequency transmitters to support legacy equipments. Now, you might be thinking, what does all the above mean to an average consumer who just wants to buy a wireless router. Here's why.

If you know your equipment which utilize Wi-Fi functionality such as phones, laptops, tablets, PMPs. You can zero-in on the frequency you would require while also taking into consideration how much congested your wireless space is.

Wifi-n is the current standard which supports both 2.4 and 5Ghz bands depending on the manufacturer of the equipment. Older equipment running on Wifi-g / b operates mostly on 2.4Ghz while Wifi-a operates at 900 Mhz.

 

2.4 GHz is probably the most congested of all. Anything which emits radio signal probably uses it. So, if you are looking at getting a new telephone or router, here is what you can do to save yourself interference headaches and performance issues :

 

Computing / Networking Equipment	Wireless Router	Telephone
Older Computing Equipment with Wi-fi G capability	Wireless - G	DECT 6.0
New computing Equipment with Wi-fi N capability	Wireless – N	DECT 6.0
Mix of the above	Dual & Simultaneous band Wireless – G/N	DECT 6.0

Most of the home networking setup would land in the last category where you would encounter mix of old and new equipment. The best way to address this go for the dual band and importantly “simultaneous” transmitting wireless router. Here is the marketing gimmick you need to be aware of :

a. Almost all of today’s Wireless routers come with flexibility to allow Wi-Fi N access over 2.4 and 5 GHz bands, but within the configuration, only one can be active at a given time.

b. The ones which come with capabilities to operate on both the bands are not very clearly identified unless you can find the word “simultaneous”.

The latter is always on a higher range price , but it will serve you well in many ways. First, the older equipment can keep chugging at the 2.4 spectrum, whereas all the new equipment supporting Wi-Fi N would benefit from accessing the 5GHz spectrum. It will allow the newer equipment to work at its best setting thus provide your with a faster bandwidth experience in operation. The networking mantra is always “the least speed of a connected device will determine the overall speed for the network”, this is also true for wired and wireless connections.

If you go with the last category in the table, your network should be operating in the following way :

1. Wi-Fi N clients >>> 5 GHz  >>>65 – 300 Mbps connectivity
2. Wi-Fi G clients >>> 2.4Ghz >>>36-54 Mbps connectivity.

Couple of noteworthy Wireless routers are shown below, which I have tried out :

Wireless G/N Device ( Operates on one band at a time).

Wireless G/N Device (Operates simultaneous bands)

I hope the above points help you in deciding the right equipment and provide the value of investment with peace of mind. Happy Networking.

Technorati Tags: Wireless,Network,Networking,Router,Home,Apple,Netgear,Dlink,2011,Home Networking,DECT,Wi-fi

Optimum configuration for your next desktop/laptop

With the current plethora of Dual core and Triple and quad core processors in the market. Typical system builders always query on what is really enough? I myself have been confronted with this question, since I have been trying to assemble a blazing desktop myself.

With money being premium in today’s world with economy in doldrums, spending wisely on your computing investment can not only free up crucial money for some extras which you could gain productive advantage with. It also gives you a uncommon satisfaction of deriving the “maximum bang” for your buck and going “green” with lesser power consumption, all in one go.

Here’s a quick breakdown of how much would be sufficient for your next desktop / laptop :

1. Video Encoders with hardcore gaming : Quad Core CPU with single/dual GPUs, 4 GB RAM and 7200 rpm HDDs. Go 64-bit for future proof, else 32 bit is the best bet with the 3.5GB accessible memory constraint for Vista 32 bit.
2. Audio enthusiasts with gaming – Dual Core CPU with single/dual GPUs, 4 GB RAM and high-end soundcard ( for desktop ). Today’s laptops with the HD Audio provide decent enough power for decent audio listening experience.
3. Average movie watching and gaming – Dual core CPU, Integrated / single GPU preferably with hybrid switching, 2-4 GB RAM with decent set of 5.1 Channel surround speakers.

The current disadvantage of memory access as noted for Vista 32 bit is still a high enough threshold for programs to use. There aren’t many programs which do multi threading, apart from some Video encoding and CAD packages which truly take advantage of the multi core processor scenario.

Unless software arrives in the market to truly take advantage of the multi core processors and the increased RAM bandwidth, which is starting to build up momentum, you are rest assured of breaking even on your investment by the time multi threading applications are a norm.

Even the OSes of today don't seem to take much advantage of a Quad core with 12 GB RAM vs. Dual Core with 3 GB RAM difference.

Facts about “size does matter”.

1. Increase in RAM modules increase idle power consumption by at least 10 W.
2. Performance difference between single core and dual core is the maximum in today’s world. above that, it is a marginal difference which doesn't bring the bang for the extra buck.
3. There is very negligible difference in performance between 3 GB to 12 GB RAM usage for any kind of applications.
4. Less energy = Longer battery life in laptops & lower power consumption in desktops.

For more helpful tidbits and interesting tech knowledge on anything related to technology, Tom’s Hardware forums are one of the most exhaustive and informative resources.