  Packet transmission scheduling on multi-hop wireless sensor networks with
3-egress gateway linear topology is studied. Each node generates a data packet
in every one cycle period and forwards it bounded for either of gateways at
edges. We focus on centrally-managed Time Division Multiple Access (TDMA)-based
slot allocations and provide the design of a packet transmission scheduling
framework with static time-slot allocation and basic redundant transmission to
reduce and recover packet losses. We proposed three general path models, which
would represent all possible variations of this topology, and derived a global
static time-slot allocation on each of models to maximize the theoretical
probability that all packets are successfully delivered to one of the gateways
within one cycle period.
