He averaged 31.2 points, 7.7 rebounds and 6.9 assists in 50 games for Liaoning of the Chinese Basketball Association, where Hudson is a two-time MVP and three-time All-Star.
The 6-foot-3 guard was originally drafted by the Boston Celtics with the 58th overall pick in the second round of the 2009 NBA draft. Hudson averaged 4.8 points, 1.3 rebounds and 1.3 assists in 52 career NBA games with Boston, Memphis, Washington and Cleveland.
The 30-year-old guard is the only NCAA player to record a quadruple-double (25 points, 12 rebounds, 10 assists and 10 steals) in a college game when Hudson played for Tennessee-Martin.
The signing was announced Sunday.