Why Mobile Google Analytics Showing Self Referral Traffic?

1. To track our mobile site; If you can implement Pixel tracking & Java Script. 
2. For mobile version of site; Use server side Google Analytics tracking library (PHP, JSP, ASP.NET, and Perl) - commonly referred to as WAP tracking (Pixel Tracking) and visitors have the ability to navigate between the mobile version and full version of your website, you may see self-referrals from your mobile and primary domains. Therefore If mobile pages do not use the regular ga.js tracking code, the effect is the same as having untagged pages on our website therefore it doesn't pass cookie information. The primary purpose of the WAP tracking library is to allow tracking of low end mobile devices i.e those devices with limited support for cookies and / or javascript
3. Therefore; pixel tracking shows 16.66% self referral traffic  whereas JS shows only 0.1%. self referral traffic.