Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

Philadelphia Police Commissioner Kevin Bethel stood at a podium behind a cherry wood coffin inside the Cathedral Basilica of SS. Peter and Paul on Tuesday and told mourners how Highway Patrol Officer ...

Philadelphia police gathered outside Holy Redeemer Chinese Catholic Church Monday night for a solemn procession to honor one of their own, Officer Andy Chan. Chan died earlier this month after being ...

Andy Chan, 55, died after he suffered traumatic injuries from a motorcycle crash while on patrol nearly seven years ago. Chan will be remembered at a funeral service Tuesday afternoon at The Cathedral ...

PHILADELPHIA (WPVI) -- The Philadelphia Police Department and members of the community gathered Monday evening to begin paying final respects to Officer Andy Chan, who served for more than 20 years.

PHILADELPHIA (WPVI) -- Fallen Philadelphia Officer Andy Chan has been laid to rest. The highway patrol officer died on December 2, nearly seven years after being critically injured in a crash. "We ...

Philadelphia police officer Andy Chan means a lot to the Chinatown community and it's not hard to find someone who knew him. A childhood friend of Andy Chan sat down with NBC10's Johnny Archer and ...

The funeral services for fallen Philadelphia Highway Patrol Officer Andy Chan took place at Cathedral Basilica of Saints Peter and Paul on Tuesday. Road closures were in effect for the viewing and ...