Abstract
We present an improved version of adaptive distributed cross-layer routing algorithm (ADCR) for hybrid wireless network with dedicated relay stations ( ) in this paper. A mobile terminal (MT) may borrow radio resources that are available thousands mile away via secure multihop RNs, where RNs are placed at pre-engineered locations in the network. In rural places such as mountain areas, an MT may also communicate with the core network, when intermediate MTs act as relay node with mobility. To address cross-layer network layers routing issues, the cascaded ADCR establishes routing paths across MTs, RNs, and cellular base stations (BSs) and provides appropriate quality of service (QoS). We verify the routing performance benefits of over other networks by intensive simulation.
Highlights
Time Division Multiple Access (TDMA)-based digital cellular standard global system for mobile (GSM) was first deployed in 1990 with a new 900-MHz band
To effectively manage problems stated above, we propose to combine the advantages of different networks so that the Mobile Terminal (MT) can utilise an optimised MANET, the base-station-oriented network (BSON) and the relay services
When packing-based relay nodes (RNs) positioning scheme is implemented in the hybrid wireless network (HWN)∗, per cell capacity is expected greater than random RN placement HWN∗ and normal cellular network under any traffic input
Summary
Time Division Multiple Access (TDMA)-based digital cellular standard global system for mobile (GSM) was first deployed in 1990 with a new 900-MHz band. An adaptive distributed cross-layer routing (ADCR) algorithm is proposed for HWN∗ based on [2] using the minimal number of hops and considering routing model dynamic switching to reduce latency, preserve communications, deliver good overall throughput/per node throughput, and extend the HWN∗ coverage. The cascaded ADCR includes three subpacket transmission modes labeled as one-hop ad-hoc transmission (OHAHT) for point-topoint ad hoc direct communication, multihop combined transmission (MHCT) for radio resource relaying using fixed RNs or MTs, and cellular transmission (CT) for traditional cellular service. In rural places without infrastructure RN support, the MHCT transmission mode can be implemented on selforganised ad hoc nodes for supporting multihop communication as long as: (i) The resource of relaying MTs is contention-free, (ii) the migration range of relaying MTs is limited, and (iii) the speed changes of relaying MTs in sampling times have limited influence on routing.
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