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Smart rf tb-v1a

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  • 1. TECHNICAL BRIEFSMART RF:Secure RF Deployment Made EasyExecutive summaryEnterprise workforce is becoming increasingly mobile and reliant on wirelessnetworks. Until now, network administrators have lacked the tools to optimizewireless networks for guaranteed uptime and reliable end-user applicationperformance. SMART RF technology, built into the innovative Wireless NextGeneration (Wi-NG) switch architecture, automates complex wireless networkoptimization tasks to ease the burden of network administration. SMART RFdynamically selects channels and power levels on an access port, thus eliminatingthe coverage gaps that can result from sub-optimal planning, stringent clientrequirements and changes in usage patterns or the RF environment itself.Unlike some solutions, that can disconnect clients while adjusting power or changingsettings too frequently, Motorola SMART RF uses field tested default values and ameasured approach while making adjustments to minimize the impact on voice callsand in-progress data sessions. Additionally, SMART RF increases capacity in denseareas such as conference rooms and lecture halls, allowing architects to simplyplug-in new access points and allow SMART RF to automatically self tune thenetwork for optimal performance.SMART RF has the unique ability to automatically determine the optimal location fordetector radios for security monitoring. SMART RF not only helps with initial channel,power level and detector radio selection, it also makes automatic or on-demandadjustments to catastrophic events such as access point failures. The day to daymanagement of wireless networks is thus greatly simplified.
  • 2. Business Challenges reliable and stable performance. One of the goals of this tool is to minimize the burden of tuning RFBusiness operations are being conducted more and algorithms by trial and error. This is achieved throughmore by wirelessly mobile employees. Network IT a conservative approach in reacting to RF eventsadministrators are challenged to deploy business and minimizing the thrashing (and ripple effects)critical applications across multiple geographic experienced throughout the network.locations accessible via both wired and wirelessnetworks. Each enterprise location, whether Motorola’s Approach tothe headquarters, branch office, warehouse or a Dynamic RF Managementdistribution centre presents a unique challenge in First, Motorola believes a well planned RF networkrespect to their unique RF characteristics. Network is a necessary first step in creating a highly reliableadministrators are faced with an increasingly and high performance network. This is based oncomplex task of designing, deploying and operating Motorola’s rich experience in deploying large indoorwireless networks that meet capacity and and outdoor wireless networks.performance requirements while ensuring usersatisfaction. As new users and applications are Second, the WLAN industry has recently witnessedadded, managing and operating a wireless network too many automated RF algorithms that reactbecomes increasingly difficult. excessively and aggressively to transient RF changes. Some of these solutions also exposeMotorola’s wireless portfolio meets this challenge too many configuration knobs. The burden ofby offering powerful tools to help network tuning the RF algorithm now rests with networkadministrators plan, design, deploy and monitor their administrators. Motorola’s SMART RF technologywireless infrastructure. Motorola’s planning software keeps configuration knobs to a minimum and reliesenables an administrator to deploy a well planned on high level metrics (like retry counts and datawireless network that meets capacity, coverage and rates) better understood by network administrators.quality of service requirements. In most cases, the conservative default value programmed in SMART RF yields a stable andEven in a well planned network, AP RF settings will reliable RF performance.need to change in response to changes in the RFenvironment. For example, an adjacent business Countering real time RF changescould introduce an interfering wireless AP or a newcubicle deployment could create RF barriers not Loss of coverage due to sudden AP failurepresent at the time of the original network design Sudden AP failures, though rare, can causeand site survey. SMART RF provides insurance significant disruption to an enterprise. An APagainst dynamic changes in RF that result in network failure can result from a defective access point,and application performance degradation. loss of power to the AP or dislodged antennas. SMART RF automatically assigns a set of APs thatSMART RF: participate in the recovery process by increasing the transmit power to compensate for the loss ofSelf Monitoring At Run Time coverage in the affected area. SMART RF ensures coverage is restored to the levels reported prior toSelf Monitoring at Run Time (SMART) RF technology the failure. This action provides uninterrupted RFprovides a simple and easy method to configure coverage, while the defective AP is either repairedand operate the RF network, so applications deliver or replaced.
  • 3. Eliminating Dead Zones Secure RF Deployment Made EasyThe quality of experience and service (QoE/QoS) of Motorola provides industry leading plug and playapplications running on a laptop or a mobile handheld architecture for deploying wireless LANs. SMARTdepends on the signal to noise ratio (SNR) received RF extends its existing deployment sophisticationby the wireless client. SMART RF monitors the a step further by automatically selecting rogue APperformance of every wireless client and compares it detectors and ensuring the wireless infrastructure iswith a desired level. When the performance drops protected 24 x 7 against rogue APs in all parts of thebelow the desired level, SMART RF ramps up the facility. Motorola’s access points offer simultaneousradio power in gradual increments until the desired operation in detector and access mode, with oneperformance is restored. SMART RF slowly increases radio dedicated to client access and another toand decreases access point transmit power as a rogue detection and mitigation. This capability takesmeasured response to RF dead zones experienced the guesswork out of choosing optimal detectorby the mobile user. The SMART RF dead zone placement and the number of detectors required foralgorithm avoids the power thrashing behavior secure RF deployment.observed in other implementations in the markettoday. SMART RF delivers optimal power to clientsand maintains reliable application performance. ConclusionsMitigating Co-channel Interference SMART RF technology makes it easy forSMART RF provides an effective tool to enterprises to deploy a secure RF infrastructure. Byautomatically compute AP channel and power automatically selecting the channel, power, numbersettings in a high density environment where small and placement of detector radios, SMART RF takescell sizes or micro-cell design is desired. It also the guesswork out of designing high performance,allows users to retune the wireless network at secure wireless networks. SMART RF also providesperiodic intervals of their choosing. This flexibility protection against dynamic RF changes impactingprovides a hassle-free mechanism to counter RF application performance and preserves the quality ofchanges caused by adding, moving or changing experience and service of end-user applications.cubicles in an office space or warehouse inventory.SMART RF results in an AP channel and powersettings such that APs on the same channel haveminimal overlapping coverage, if any.Countering Non-Wi-Fi InterferenceSMART RF ensures infrastructure access points onthe same channel have minimal overlap. However,non-802.11 interference sources like Bluetoothdevices, microwaves, wireless cameras and accesspoints from neighboring businesses can still createinterference. SMART RF counters it by steeringthe AP to the least noisy channel. It is possible thatan AP in the cafeteria is affected by microwaveinterference and that an AP in another part ofthe building on the same channel is not. SMARTRF counters the interference locally and ensuresminimal disruption. A new channel and power valueis established for the affected AP.
  • 4. motorola.comPart number TB-SMARTRF. Printed in USA 02/09. MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service namesare the property of their respective owners. ©2009 Motorola, Inc. All rights reserved. For system, product or services availability and specific information within your country,please contact your local Motorola office or Business Partner. Specifications are subject to change without notice.