Actually, in English to Korean dictionary, both of "called" and "so-called" have the same meaning.
In many examples of the dictionary, "so-called" is used as adjective rather than past-particle, i.e., it is placed before the noun.
On the other hand, "called" is used as past particle many times.
However, recently I've frequently observed that the word "so-called" is used as past-particle like "called".
What is exact difference between called and so-called? (Not only meaning but also usage)
The following two sentences are the example I made:
Networks that consist of multiple mobile nodes are promising technology, so-called mobile ad hoc networks (MANETs).
Networks that consist of multiple mobile nodes are promising technology, called mobile ad hoc networks (MANETs).