LDR for me is all about trust.
Of course you miss each other so much and sometimes communication is difficult b'coz of time difference.
But as long as you both have a clear and positive vision of the future it can work.
As for me I had LDR for two years (with visits every 6 months or so) which was very stressful for both. But we made it!!!
Sometimes I wonder how and why with so many obstacles!! I feel you need more than just 'I love you'
You need trust, honesty and open communication
Just my two pesoworth [is there such a word?]