Node and method for communication control

A node in an ad hoc network constituted of nodes each of which sets a time thereof based on time information propagated sequentially from a time synchronization source, the node comprising:

• a time difference measurement unit configured to measure a time difference that is a difference between a first time based on latest received time information and a second time based on second-latest received time information;
• and
• a time setting unit configured to calculate an adjustment time difference by multiplying the time difference by a predetermined rate when the time difference exceeds an allowable range of error that is smaller than an allowable range of maintainable communication, set a time obtained by adding the calculated adjustment time difference and the second time to the time of the node when the calculated adjustment time difference is within the allowable range of maintainable communication, and set a time obtained by adding a time difference corresponding to the allowable range of maintainable communication in place of the calculated adjustment time difference and the second time to the time of the node when the calculated adjustment time difference exceeds the allowable range of maintainable communication.