{"id":1378,"date":"2012-01-06T11:41:44","date_gmt":"2012-01-06T11:41:44","guid":{"rendered":"http:\/\/www.raymaps.com\/?p=1378"},"modified":"2012-06-07T09:56:44","modified_gmt":"2012-06-07T09:56:44","slug":"winner-ii-path-loss-model","status":"publish","type":"post","link":"https:\/\/www.raymaps.com\/index.php\/winner-ii-path-loss-model\/","title":{"rendered":"WINNER-II Path Loss Model"},"content":{"rendered":"

In simple terms the path loss is the difference between the transmitted power and the received power of a wireless communication system. This may range from tens of dB to more than a 100 dB e.g. if the transmitted power of a wireless communication system is 30 dBm and the received power is -90 dBm then the path loss is calculated as 30-(-90)=120 dB. Path loss is sometimes categorized as a large scale effect (in contrast to fading which is a small scale effect).<\/p>\n

According to the WINNER-II model the path loss can be calculated \u00a0as:<\/p>\n

\"WINNER-II<\/a>
WINNER-II Path Loss Equation<\/figcaption><\/figure>\n

Here d is the separation between the transmitter and receiver in meters, fc<\/sub> is the frequency in GHz, A is the path loss exponent, B is the intercept and C is the frequency dependent parameter. X is the environment specific parameter such as path loss due to a wall. PLfree<\/sub> is the path loss in a free space line of sight environment (here A=20, B=46.4 and C=20).<\/p>\n

The table below describes the different environments defined in the WINNER-II model. Once an environment is selected the path loss parameters A, B and C can be selected from the table further down e.g. A1 is the in-building scenario with A=18.7, B=46.8 and C=20 for the LOS case. The PL for a T-R separation of 100 m and frequency of 2 GHz is calculated as:<\/p>\n

PL=18.7*log10(100)+46.8+20*log10(2\/5)=76.42 dB<\/p>\n

A separate equation for the path loss is given where the parameters A, B and C are not sufficient to describe the scenario.<\/p>\n

\"WINNER-II<\/a>
WINNER-II Propagation Scenarios<\/figcaption><\/figure>\n
\"WINNER-II<\/a>
WINNER-II Path Loss Models<\/figcaption><\/figure>\n

Note:<\/p>\n

1.\u00a0Here CG is the concept group that developed the particular scenario. This is either Local Area (LA), Metropolitan Area (MA) or Wide Area (WA).<\/p>\n

2. For more details visit:<\/p>\n

L. Hentil\u00e4, P. Ky\u00f6sti, M. K\u00e4ske, M. Narandzic , and M. Alatossava. (2007, December.) MATLAB implementation of the WINNER Phase II Channel Model ver1.1 [Online]. Available:\u00a0https:\/\/www.ist-winner.org\/phase_2_model.html<\/a><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

In simple terms the path loss is the difference between the transmitted power and the received power of a wireless communication system. This may range from tens of dB to more than a 100 dB e.g. if the transmitted power of a wireless communication system is 30 dBm and the received power is -90 dBm then the path loss is calculated as 30-(-90)=120 dB. Path loss is sometimes categorized as a large scale effect (in contrast to fading which is a small scale effect). According to the WINNER-II model the path loss can be calculated \u00a0as: Here d is the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,18],"tags":[47,56,46,114,43,52],"class_list":["post-1378","post","type-post","status-publish","format-standard","hentry","category-chanmod","category-lte","tag-4g","tag-channel","tag-coverage","tag-lte","tag-network-planning","tag-path-loss"],"_links":{"self":[{"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/posts\/1378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/comments?post=1378"}],"version-history":[{"count":41,"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/posts\/1378\/revisions"}],"predecessor-version":[{"id":1819,"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/posts\/1378\/revisions\/1819"}],"wp:attachment":[{"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/media?parent=1378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/categories?post=1378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.raymaps.com\/index.php\/wp-json\/wp\/v2\/tags?post=1378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}