The 32-year-old joined Fulham from Hamburg in the summer, but has scored just five goals in 15 appearances despite making an encouraging start.
He told Glas Slavonije: "London is an amazing city and I regret that I didn't come here even earlier. Quality of life is very high; this city is phenomenal for life.
"I'm happy if my wife and kids are happy and they all love it here. We live in Chelsea, we have everything at hand and I really cannot complain.
"I could have scored more goals but, then again, my statistics would probably be better if I had played more. But I do not want to look for excuses. I will do my best to improve my numbers and that is all."