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bdy r ntwrk (BN), ls rfrrd t s wrlss bdy r ntwrk (WBN), bdy snsr ntwrk (BSN) r mdcl bdy r ntwrk (MBN), s wrlss ntwrk f wrbl cmptng dvcs. BN dvcs my b mbddd nsd th bdy s mplnts r plls, my b srfc-mntd n th bdy n fxd pstn, r my b ccmpnd dvcs whch hmns cn crry n dffrnt pstns, sch s n clths pckts, by hnd, r n vrs bgs. Dvcs r bcmng smllr, spclly n bdy r ntwrks. Ths ntwrks ncld mltpl smll bdy snsr nts (BSs) nd sngl cntrl nt (BC). Dspt ths trnd, dcmtr (tb nd pd) szd smrt dvcs stll ply n mprtnt rl. Thy ct s dt hbs r gtwys nd prvd sr ntrfc fr vwng nd mngng BN pplctns n th spt. Th dvlpmnt f WBN tchnlgy strtd rnd 1995 rnd th d f sng wrlss prsnl r ntwrk (WPN) tchnlgs t mplmnt cmmnctns n, nr, nd rnd th hmn bdy. bt sx yrs ltr, th trm "BN" cm t rfr t systms whr cmmnctn s ntrly wthn, n, nd n th mmdt prxmty f hmn bdy. WBN systm cn s WPN wrlss tchnlgs s gtwys t rch lngr rngs. Thrgh gtwy dvcs, t s pssbl t cnnct th wrbl dvcs n th hmn bdy t th ntrnt. Ths wy, mdcl prfssnls cn ccss ptnt dt nln sng th ntrnt ndpndnt f th ptnt lctn.